You do not know how grateful i am to you Kevin for this video. I have never understood this but thankfully i found this video. I feel better about writing my finals next week Friday
Kevin, i used to get levels 2 and 3 last year in maths, but ever since i started watching your videos, it made a big difference in my maths marks. In term 1, i went from level 2 to level 5, and in term 2, i got a level 6, term 3. i got a level 6, too. It’s the holidays before term 4, and I'm watching your videos and practising to get that distinction at the end of the year. It's a crucial time because we are applying at universities with these marks, so thank you, and God bless you❤
Kevin ❤ hello thank u for the videos you've been posting youre really making an impact on the lives of many although you are somehow underated i cant comprehend why but thank u . Im writing math tomorrow nd i been struggling a lit so thank you
an easier way is to draw the parabola of the equation on the number line and look for the sections of the graph that fit the inequality. For example, with the first question you would write down the x values for the part of the graph which is under the x axis.
Hi Kevin love Ur vids and they help me so much but I do still struggle sometimes do U have any recommended methods or anything I should try to get better
4:47 for us afrikaans learners, our teacher made it easy: Van -1 tot 4 so technically the smallest number up to the biggest. And for us not to use the wrong signs she taught us by turning the t's 😂
11:12 when I plucked - 1 and 20 I got a positive answer but why can't we include it because the question says that the value we must get should be positive??
hi this actually helps so much I'm just concerned about when writing doing this in the exam, are we required to show any type of working out or is this sufficient to get full marks?
Hello Itumeleng. Solving that would give x =4 and -4. Draw a number line with 4 and -4. Choose a number on left of -4. I choose -5. Plug into equation and get a positive answer. Choose a number in between. I choose 0. Plug into equation and get negative answer. Choose a number bigger than 4. I choose 5. Plug into equation and get positive answer. Your question is asking where it is smaller than 0 which means negative. Look on your number line. We got negatives between -4 and 4. Therefore: -4
Yes it is significant. Look at your second one carefully: -1 < x < -4. It says that x must be bigger than -1 and smaller than -4. Now, if you think about that carefully, you see that that is impossible. Hope that makes sense :)
Hey man, try do it one or two more times and see if you can get it. Using the quadratic formula is absolutely fine. Just make sure to insert values correctly :)
Nope, that was deliberate and allowed, all signs including the inequality sign were changed for simplification, watch carefully when he starts the problem
It's 1 o'clock at night and I have a math exam tomorrow I watched all of your videos and I'm so glad I can say I'm going to ace it thanks to you😭😭
lol
same
Lol...same
I'm doing the same ryt now
Did u ace it??
Me right now 😭
You do not know how grateful i am to you Kevin for this video. I have never understood this but thankfully i found this video. I feel better about writing my finals next week Friday
Good luck with the finals friend ❤
Kevin, i used to get levels 2 and 3 last year in maths, but ever since i started watching your videos, it made a big difference in my maths marks. In term 1, i went from level 2 to level 5, and in term 2, i got a level 6, term 3. i got a level 6, too. It’s the holidays before term 4, and I'm watching your videos and practising to get that distinction at the end of the year. It's a crucial time because we are applying at universities with these marks, so thank you, and God bless you❤
Thank you so much Kevin. After watching more than 5 different videos of inequality you saved me. God bless you
This makes so much sense now, I can't thank you enough for this video😭💙
Pleasure :)
bro is a life saver
Kevin is an angel sent by The Great One. He has saved my life. God bless you Kevin
Excellent video ,u are the man,i watched like 4 orther videos,and this 1 makes sense,definitely had to subscribe
Thank you and welcome :)
Thanks man. Been struggling for more than one and a half hours to figure out how to do this, you cleared my doubt in 20 mins.
haha you're very welcome Krishan!
This man saves millions of lives😭😭😭😭😭😭
I'm so grateful for this
I'm starting g11 next year and these have helped me a lot!!
Thanks a ton❤️!
Your truly a God sent 🙏 only lord knows how much I was struggling with inequalities
Thanks 😊
Glad it helped!
Kevin Maths too goated. He needs more subs
Kevin ❤ hello thank u for the videos you've been posting youre really making an impact on the lives of many although you are somehow underated i cant comprehend why but thank u . Im writing math tomorrow nd i been struggling a lit so thank you
Writing tomorrow this helped alot
kevin always saves the day,thank you for making this video's they help a lot.❤❤❤
Wow now it makes sense.. Thanks for the video sir🙏....i was really struggling with these😂
This was a lovely explanation, I can never get confused again when it comes to inequalities
im so grateful im writing maths tomorrow and i think im ready bc of him
You're literally a star 😭❤
You've literally saved my life. Thank you so much❤
Pleasure!
After watching almost like 4 videos I managed to understand this one THANK U
Thank you so much, I understand alot more better now💕
It's 4am and we back on the grind (yes bc I got an exam tomorrow)
Don't mind me , just learning the whole syllabus the night before me exam
Yesss
Kevin you changed my life in just 16 minutes 🙏
Thanks sir. I somehow always forget how inequalities work. This helps lot.
Ahhhhh the year just started😂😂😂😂😂
this was a great video, I understand so much now. Thank you!!🤗
You are so welcome!
Bouta write maths in 9 hours😭
This video helped me alot
Thanks alot bro
Thank you Sir. Helped me out big time 😂.
an easier way is to draw the parabola of the equation on the number line and look for the sections of the graph that fit the inequality. For example, with the first question you would write down the x values for the part of the graph which is under the x axis.
Thank you so much my Maths teacher confuses me when she uses graphs to explain this
Thank you so much, i really needed this ❤️
Thank you so much you are a life saver
Happy it helped you :)
LEGEND OF THE SPORT
Kevin you are the best ❤
You are the best 🎉🎉🎉🎉
Made a mistake by number 4 it's supposed to be x=-1 12:26
Will be doing these this way from now on! Thanks❤️
Awesome :)
Thank you so much ta kev god bless you sir ❤
Much love bro ❤
Kevin the GOAT .🙏
What buhle
Hi Kevin love Ur vids and they help me so much but I do still struggle sometimes do U have any recommended methods or anything I should try to get better
My quickest advice would be to follow my Instagram where I share videos of motivation and tips :)
instagram.com/kevinmathscience/
Man you are the 🐐
4:47 for us afrikaans learners, our teacher made it easy:
Van -1 tot 4 so technically the smallest number up to the biggest. And for us not to use the wrong signs she taught us by turning the t's 😂
11:12 when I plucked - 1 and 20 I got a positive answer but why can't we include it because the question says that the value we must get should be positive??
Thanks kevin❤
thank you for these!!!
Hi there Kevin, love the video. I have a question about number 4. Help me to understand why it isn't x>/=1 and x
If you doing the parabola method it's a negative graph, so Kevin is right
Had to understand it now 🫶🏼❤️
Thank you so much
Sir Kevin saying you can choose any number , me: 5 him: 1000. 😂
Haha :)
hi this actually helps so much
I'm just concerned about when writing doing this in the exam, are we required to show any type of working out or is this sufficient to get full marks?
Hello Zahraa, glad it is helping you. Yes this technique is fine for in exams :)
why is the answer in question 3 seperated?
What happens if instead of
In that case you take EVERYTHING to one side and make the other side a zero.
@@kevinmathscience thank you so much!!!!!
5:38 I don’t get it for the (x-5)(x-2)=0
3 o’clock at night 😢
*morning
You said on B I must plug numbers between-1 and 20.. but when I plug 3 I get a negative number? What am I doing wrong? Number 3.
I tried your method on equation where x*2-16
Hello Itumeleng. Solving that would give x =4 and -4. Draw a number line with 4 and -4.
Choose a number on left of -4. I choose -5. Plug into equation and get a positive answer.
Choose a number in between. I choose 0. Plug into equation and get negative answer.
Choose a number bigger than 4. I choose 5. Plug into equation and get positive answer.
Your question is asking where it is smaller than 0 which means negative. Look on your number line. We got negatives between -4 and 4.
Therefore:
-4
Thanks ❤
duuuude tysm!!
No problem 👍
Thank u🙏💯
Pleasure :)
You have saved me from my fate in tommorows paper 1
Sir I don't know how in question 3 column A Its negative and why did you use a negative number instead of a positive number
Is this how I'm supposed to answer in a test ( from the number line)
Literally im confused
Is it significant that it's written as x < 4,x 1 rather than -1 < x < -4
Yes it is significant. Look at your second one carefully: -1 < x < -4.
It says that x must be bigger than -1 and smaller than -4.
Now, if you think about that carefully, you see that that is impossible.
Hope that makes sense :)
why did it change at question 3
I used the quadratic function on example 3 but my final answer is not the same can you do an example with a quadratic function
Hey man, try do it one or two more times and see if you can get it. Using the quadratic formula is absolutely fine. Just make sure to insert values correctly :)
Thanks I'm sure I inserted the wrong numbers
you saved my life no jokes
I am so happy it helped!
Do you also do tutoring?
Yes I do private tutoring but am completely booked for rest of 2021.
@@kevinmathscience how do I contact you for tutoring in 2022 for grade 12
Hi sir Kevin for question 3 you wrote x^2 instead of -x^2 which makes your answer wrong coz I tried it
Nope, that was deliberate and allowed, all signs including the inequality sign were changed for simplification, watch carefully when he starts the problem
Neat!
Glad it helped! :)
JESUS LOVES YALL HE SAVES HE IS KING HE IS COMING BACK SOON REPENT RUN TO HIM HE LOVES YALL
Is there anyone who got - 1 and 1/20 for using the quadratic formula on question 3 instead of factorising
I am struggling to understand question 3
Nevermind I understand now thank you so much you really helped me
Glad you figured it out Marjorie :)
Please teach how to write the answers it's really confusing 😕🤯
Hi Zakhele, I will try to make a video on that.
kevin do you know if it weren't for you i 100% 95% of south african learner would of failed atleast one year😅
二度目👀
I’m so grateful for this channel because it is literally saving me rn🫶🏽❤️