Using the Discriminant for Quadratic Equations

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  • เผยแพร่เมื่อ 9 ก.ย. 2024
  • Thanks to all of you who support me on Patreon. You da real mvps! $1 per month helps!! :) / patrickjmt !! Using the Discriminant to determine the number of REAL solutions to a quadratic equation.
    For more free math videos, visit htt://JustMathTutoring.com

ความคิดเห็น • 225

  • @anyaspirkosky7893
    @anyaspirkosky7893 9 ปีที่แล้ว +92

    This taught me more than my math teacher did tbh! Thank you :)

    • @Coco-kr7dz
      @Coco-kr7dz 4 ปีที่แล้ว +1

      That happens a lot to me😂

  • @faisalalhumayyd5307
    @faisalalhumayyd5307 9 ปีที่แล้ว +78

    I have math final test tomorrow and thank you for helping you are the best

    • @ecstatic8853
      @ecstatic8853 8 ปีที่แล้ว +2

      Thanks this is helping me to create a test for a school assignment!

    • @NamesZKP
      @NamesZKP 8 ปีที่แล้ว +2

      +BlockMasta Boooooo

    • @ecstatic8853
      @ecstatic8853 8 ปีที่แล้ว +1

      Lol

    • @MeltMyGelt
      @MeltMyGelt 5 ปีที่แล้ว +1

      Faisal Alhumayyd same dude

    • @ShahmeerKhanGamer
      @ShahmeerKhanGamer 5 ปีที่แล้ว +1

      How did the test go?

  • @emorrell21
    @emorrell21 6 ปีที่แล้ว +21

    I always relieved when I search for a video, and find that you have made one for what I am looking for. You always explain so well. Your videos are so helpful, they frequently save me 😅

  • @boarder206
    @boarder206 15 ปีที่แล้ว +1

    my teacher went over this for like a week and i didnt know what she was talking about and i watch this video for like seven minutes and i understand....YOUR AWESOME

  • @Jono.
    @Jono. 10 ปีที่แล้ว +1

    Only needed 1 minute of this video to serve as a refresher and stayed for the whole thing! Thank you.

  • @xxxcoffee328xxx
    @xxxcoffee328xxx 14 ปีที่แล้ว +2

    Hi i am a 10th grader i wanted to say thaank you. You made this simple for me to understand this. It would be awsome to have you as a teacher : )

  • @savi_mess8456
    @savi_mess8456 10 ปีที่แล้ว +11

    THank you this really helped unlike my teachers explanation I have a test tomato and this really helped me find a easy way to do this.

  • @loveloreal
    @loveloreal 16 ปีที่แล้ว +1

    i was going to say "o my gosh thank you" but someone else has already said it. so ditto! i am in my first year of college and takin precal. i forgot all about this. thanx for posting it. you explained it really well. great job

  • @runawaysuzie
    @runawaysuzie 7 ปีที่แล้ว +4

    Thanks, unorthodox teaching seemingly. At least to me. You actually explain the language structure and rules. Capable at doing and explaining. 10\10

  • @patrickjmt
    @patrickjmt  16 ปีที่แล้ว +10

    yea! it was made just for you : )

    • @hianhwemah8088
      @hianhwemah8088 3 ปีที่แล้ว +2

      How old r u now.. l mean after 12 years🤣🤣🤣

  • @Kazok
    @Kazok 7 ปีที่แล้ว +23

    i love you

    • @isothic8058
      @isothic8058 5 ปีที่แล้ว

      nice clickbait loser

    • @moose18100
      @moose18100 5 ปีที่แล้ว

      Lilly With A AR15 2 mins ago... now that’s rare

    • @nessiewalk9180
      @nessiewalk9180 3 ปีที่แล้ว +1

      how does this guy have almost a million subs and no videos

  • @davidcarter8269
    @davidcarter8269 4 ปีที่แล้ว

    My math teacher is a sick guy so I can’t even diss him but I goof off to much in class, this mans channel has singlehandedly gotten me this 92.

  • @kyle___9029
    @kyle___9029 10 ปีที่แล้ว +1

    yep its the night before finals and I have no idea what I'm doing, luckily I found this video and it helped me out a ton! I now am slightly more confident that there will be no summer school for me

  • @sarahmitchell6178
    @sarahmitchell6178 9 ปีที่แล้ว +24

    I now understand math. THANK YOU!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

  • @the44thchamber
    @the44thchamber 7 ปีที่แล้ว

    I keep a playlist for my math tutor, anytime I come across pats content its an automatic add for me. You're a savior, I'm taking you with me through all of undergrad. The future of education right here, the personal virtual tutor

  • @amirpalamar7133
    @amirpalamar7133 7 ปีที่แล้ว +1

    I have a math final tomorrow and I only remember stuff for the test (allows me to never study except for finals) and your videos have been really helpful in remembering everything!

  • @gisellerubio-limon1554
    @gisellerubio-limon1554 5 ปีที่แล้ว +1

    Thank god for this video my homework was asking what the discrimination was to the equation and i was confuse so i search it up and found this. so thank you very much it help me a lot :)

  • @kataquino5863
    @kataquino5863 10 ปีที่แล้ว +10

    Thxs sooo much!! I have a test on this tomorrow!

  • @chellelopez1878
    @chellelopez1878 8 ปีที่แล้ว +5

    Thank you so much sir Patrick it helped me a lot. :)

  • @rohansachdeva3724
    @rohansachdeva3724 4 ปีที่แล้ว +3

    When you uploaded this video, I was in kindergarten, Now, I am in class 10 in India, and now I am watching it. Superb!

  • @stephaniejohnson2332
    @stephaniejohnson2332 9 ปีที่แล้ว +4

    thx so much really helpful things to know before my test

  • @luke8678
    @luke8678 3 ปีที่แล้ว +2

    Got sick at school and have to try and learn this on my own 😭

  • @MissSmooch209
    @MissSmooch209 7 ปีที่แล้ว +3

    Thank you so much!! I missed class the day we learned it and I was so confused

  • @madjohnny92
    @madjohnny92 12 ปีที่แล้ว

    @patrickJMT living in hk right now, and you made more sense than my chinese math teacher. thanks

  • @patrickjmt
    @patrickjmt  16 ปีที่แล้ว +1

    happy to help!

  • @Azshauyia
    @Azshauyia 14 ปีที่แล้ว

    Thanks for uploading this video help me on my homework that my teacher didn't cover in class.

  • @henrybecerra1353
    @henrybecerra1353 10 ปีที่แล้ว +3

    you teach better than my teacher thx

  • @jasonhua676
    @jasonhua676 7 ปีที่แล้ว +4

    Mrs.Lighty's class ROLL CALL!

  • @xxntvxx123
    @xxntvxx123 10 ปีที่แล้ว +6

    thankyou so much! this really helped mee :)

  • @RikkiRox6767
    @RikkiRox6767 11 ปีที่แล้ว +1

    I am so thankful for these videos, thank you so so much!

  • @SquatBenchDeadliftz
    @SquatBenchDeadliftz 8 ปีที่แล้ว +1

    Thanks Patrick. This was a very helpful video. :)

  • @WantSalsa
    @WantSalsa 15 ปีที่แล้ว +1

    cheers dude. that sorts out question 10 on this past paper im doing. im sure ill remember this stuff now. also if i have a question on this sort of maths would you be able to do a video on how to work it out because my teachers at school arnt all that good.

  • @pondbossbaits4579
    @pondbossbaits4579 7 ปีที่แล้ว

    This is the first helpful math video I've seen. Thank you

  • @MiiszUniquexX
    @MiiszUniquexX 14 ปีที่แล้ว

    thank u ur a life saver.... can really explain how right now in a hurry to get this on paper

  • @Roweign143
    @Roweign143 14 ปีที่แล้ว

    oh, its you again. LOL i just watched your other tutorial about quad eq (completing the square) and i really understood it more. thanks!!! =)

  • @petercourt
    @petercourt 16 ปีที่แล้ว +1

    Great videos, thanks for them! They'll be very useful during my A-Level course :)

  • @herblady28
    @herblady28 15 ปีที่แล้ว

    Thanks! You explained it very easily to me.

  • @carmine5663
    @carmine5663 6 ปีที่แล้ว

    Great video, you explained much better then my teacher

  • @BEASTIN101
    @BEASTIN101 10 ปีที่แล้ว +3

    THIS is great thanks!!!!!!!!!!

  • @tysonnhan6086
    @tysonnhan6086 9 ปีที่แล้ว +1

    Thank you. This helped me out a lot! :)

  • @rae8303
    @rae8303 10 ปีที่แล้ว +2

    Thank you! This helped a lot!

  • @Gembaymama
    @Gembaymama 11 ปีที่แล้ว

    Thank you. Once again you have saved the day.

  • @madbb0147
    @madbb0147 6 ปีที่แล้ว +1

    Thank you so much for explanation but I have one question. Can we use factorization in the discriminate or does it always have to be quadratic formula?

  • @patrickjmt
    @patrickjmt  14 ปีที่แล้ว

    @CutieJulie15 yep, that is correct.

  • @sweentnhot0104
    @sweentnhot0104 13 ปีที่แล้ว

    @mubbu100 you use the b^2-4ac = 0, meaning that there would be only one real solution. Plug in 2 for a, K for b, and 3 for c. Then you'll notice that k^2 - 24 = 0. solve the equation, k^2 = 24; and k = plus or minus square root of 24.

  • @nadiakurdi4373
    @nadiakurdi4373 11 ปีที่แล้ว

    your writing is awesome!

  • @uz4ir12345
    @uz4ir12345 16 ปีที่แล้ว

    just done this today in lecture !!!

  • @patrickjmt
    @patrickjmt  16 ปีที่แล้ว

    perfect! good luck on the exam!

  • @sweentnhot0104
    @sweentnhot0104 13 ปีที่แล้ว

    @joethn -b over 2a is the axis of symmetry of the quadratic graph.

  • @prakhargangwar_3519
    @prakhargangwar_3519 6 ปีที่แล้ว +1

    Why can't my maths teacher be like you?! 😭😭😭

  • @Supreme8686
    @Supreme8686 14 ปีที่แล้ว

    Thank you very much! You have some very lucky students.

  • @chellelopez1878
    @chellelopez1878 8 ปีที่แล้ว

    Thank you so much sir Patrick it helped me a lot.

  • @MRJber2
    @MRJber2 12 ปีที่แล้ว

    Thanks :) .I understand you more than my teacher :'33

  • @XstaphyX
    @XstaphyX 15 ปีที่แล้ว +1

    :D
    yay math videos! haha
    hey i was wondering if you had any videos about imaginary numbers? like when the discriminant is a negitive number. we were learning about in class and i was at a total loss haha. i looked for it, but couldn't find one :/

  • @patrickjmt
    @patrickjmt  15 ปีที่แล้ว

    tests they take in england i think

  • @antyaglad.444
    @antyaglad.444 8 ปีที่แล้ว +6

    Having A Test 2morrow :(

  • @m16bulletrain
    @m16bulletrain 9 ปีที่แล้ว

    Your the real mvp

  • @odessaagas3384
    @odessaagas3384 9 ปีที่แล้ว

    After watching and listening to all his tutorials now I feel in love with his voice ... ha ha ha.. Thanks!

  • @1997tamim
    @1997tamim 11 ปีที่แล้ว

    great teacher
    thx very much

  • @x0dina
    @x0dina 16 ปีที่แล้ว

    oh my gosh-
    Yay for this video
    Thanks.

  • @EdzChan
    @EdzChan 12 ปีที่แล้ว

    this video is great... you really help people like me :)
    im just practicing ALGEBRA right now.. Keep up the good work and upload more and teach us some techniques for us to understand the TOPIC ^^

  • @dennissanchez5171
    @dennissanchez5171 5 ปีที่แล้ว

    Very clear, thanks a lot!

  • @TheKennedy098
    @TheKennedy098 12 ปีที่แล้ว

    oh Patrick, thank you for helping with my homework lmao.

  • @julioequinones
    @julioequinones 9 ปีที่แล้ว +1

    dy/dx= +or- sqrt D
    Fast way to solve any quadratic equation.
    It turns it into a simple linear equation.

  • @JazMadeIt
    @JazMadeIt 13 ปีที่แล้ว

    Thanks, this helped me.

  • @seal516
    @seal516 5 ปีที่แล้ว +1

    When do you normally learn this? What age?

  • @oliree4086
    @oliree4086 7 ปีที่แล้ว

    thankuuu you just saved ma add maths 😅

  • @MeltMyGelt
    @MeltMyGelt 5 ปีที่แล้ว

    This video was so helpful thank you!!!

  • @jayjaybigmac
    @jayjaybigmac 12 ปีที่แล้ว

    Thank you for explaining this in a video my teacher goes to fast.

  • @sportsboy4
    @sportsboy4 14 ปีที่แล้ว

    nice videos :) all very helpful. and ure numbers are very neat btw :P good job. what grade do you teach?

  • @ministerd.1212
    @ministerd.1212 4 ปีที่แล้ว +1

    Why did you multiply -12 times -12 at 5:40

  • @tb5003
    @tb5003 7 ปีที่แล้ว

    Thanks this cleared up alot

  • @anniemintz7278
    @anniemintz7278 5 ปีที่แล้ว

    Omg so helpful you are a god

  • @lb3026
    @lb3026 5 ปีที่แล้ว

    very useful, thanks!

  • @milesbibbins2037
    @milesbibbins2037 9 ปีที่แล้ว +1

    Can you help me make the quadratic equation using the just the values? Because I can't figure what variable to attach to which number. Thanks

  • @seemslegit6021
    @seemslegit6021 9 ปีที่แล้ว +55

    are you god?

  • @xXxDEMANJENIYAxXx
    @xXxDEMANJENIYAxXx 14 ปีที่แล้ว

    thank you very much that really helped. i have a pre public tomorrow and i hope i pass!!!!

  • @swarnalokesh
    @swarnalokesh 4 ปีที่แล้ว

    Thanks really helpful

  • @chadearlmatthus
    @chadearlmatthus 11 ปีที่แล้ว

    thanks! helped a lot!!!!!!!

  • @kyrstonjohnson7252
    @kyrstonjohnson7252 10 ปีที่แล้ว +1

    Explained very well (y) i understand perfectly

  • @rykerpercival8931
    @rykerpercival8931 10 ปีที่แล้ว +4

    You should have talked about i.

  • @topnotchjordii
    @topnotchjordii 5 ปีที่แล้ว

    Thank you so much

  • @menitrust5220
    @menitrust5220 3 ปีที่แล้ว +1

    Can you do Discriminant with 4 digits?

  • @mikasomera3118
    @mikasomera3118 5 ปีที่แล้ว

    Thanks its our exam tomorrow

  • @htank20
    @htank20 13 ปีที่แล้ว

    Find the set of values of K for which the equation
    2x^2 + kx + 2 = 0 has no real roots
    AND
    find the range of values of K for which the equation
    x^2 + 5x + k=0 has one or more real roots.
    How do i tackle these types of question where it's not as straight foward as substituting the discriminant part of the equation?

  • @shaunaklavande8159
    @shaunaklavande8159 7 ปีที่แล้ว

    bruh ur a legend

  • @AK.
    @AK. 12 ปีที่แล้ว

    Perfect! Thanks

  • @julieunicornz5236
    @julieunicornz5236 9 ปีที่แล้ว

    thank you thank you thank you!!!

  • @feonadong3372
    @feonadong3372 11 ปีที่แล้ว

    What kind of math class do you teach? Algebra 2? Calculus?

  • @joethn
    @joethn 14 ปีที่แล้ว

    then why do we use the -b+divide b2-4ac/2a
    where do use 2a?

  • @TheGreenDuck3000
    @TheGreenDuck3000 16 ปีที่แล้ว

    yaaay i understand..... im going to sub great vids

  • @supermaniman123
    @supermaniman123 7 ปีที่แล้ว

    How would you solve problems using the discriminate though?

  • @josephcaron2076
    @josephcaron2076 5 ปีที่แล้ว

    Thank you

  • @patrickjmt
    @patrickjmt  12 ปีที่แล้ว

    @SpEEdHackEr101 no problem : )

  • @Jackiplier
    @Jackiplier 11 ปีที่แล้ว

    Well, the descriminant helps with determining the real solutions, but how do you determine complex and repeated solutions?

  • @aksharrangani3195
    @aksharrangani3195 6 ปีที่แล้ว

    You need to also explain how to find what TYPE of equation is it too

  • @ahmadintabli7952
    @ahmadintabli7952 5 ปีที่แล้ว

    thank you so much helped alot ❤

  • @NicoleCzarnecki
    @NicoleCzarnecki 15 ปีที่แล้ว

    I've seen the videos that he has for normal quadratic equations, and you'll find soultions that are like "x = (+/-)(1 (+/-) √-15) / 4".

  • @AlexanderMathura09
    @AlexanderMathura09 13 ปีที่แล้ว

    hey for a function Fg(x)=x has two equal roots, what discriminant do you use and why??

  • @kristofeh
    @kristofeh 13 ปีที่แล้ว

    surely if b^2 -4ac = 0 you get a repeated root, ie 2 roots of the same value