This helped me out so much! I've had trouble with factoring for years and you single handedly made it simple enough for me to understand. You're a great teacher. Thank you!
"But this video doesn't explain why you can simply multiply an expression by 2 and then by 3 and it's mathematically valid. That's a serious problem." It didn't directly state it, but when she said that x = -3.5 and x = 1/3 she then showed that implies x+3.5 = 0 and x - 1/3 = 0 Multiplying those two together gives you (x+3.5)(x - 1/3) which is equal to 0*0 = 0. Then since 3.5 = 7/2 she wrote (x+7/2)(x - 1/3) But keep in mind these are both still = 0 as mentioned above. (x + 7/2)(x - 1/3) = 0 Multiply both sides of the equation by 2 and the equal sign stays true. 2(x + 7/2)(x - 1/3) = 2*0 (2x + 7)(x - 1/3) = 0 Now multiply both sides by 3 and the equation still stays true because, again, you're doing the same thing to both sides of an equal expression. 3(2x+7)(x - 1/3) = 3*0 Commutative property (2x+7)*3(x - 1/3) = 0 (2x+7)(3x-1) = 0 And it is still equal to zero just as (x + 7/2)(x - 1/3) form was. It is two versions of the same factored form, one just has integers which is the way we traditionally think of "factoring".
If you are using the TI 83/84 family of calculators, you should be able to enter your number in decimal form, hit MATH ENTER ENTER, and it will convert to a fraction.
You should be able to go to the Math Department and sign a waiver stating that you will carry around a ti89 and the manual around with you for the rest of your life.
Why not just enter Y2 = 0 and then just find the intersection of the quadratic and the x-axis to find any real roots? It's much easier than having to go left of the root and then right of the root. Just a suggestion.
Hi I have a Ti-84 Plus, But when i true to do like you do, it dot work, Do I have to download some special program for it, or what is wrong, ? Show a viedo how to solve with Ti-84 Step by step. :) Thanks
I put the Nazi flag as my banner on Facebook and I'm sure you know what the Nazi flag means. Now it's pretty much the same for the confederate flag. Facebook banned my account from activity for 24 for making the Nazi flag as my banner on Facebook. I saw someone else have the confederate flag on Facebook and they're profile was still active. Therefore I put the confederate flag on my profile and everywhere. Thank you and have a great day.
Is there an easier/different way to do it? We have some monsterous funcitons like for example 7x^9+3x^4-3x^2+2x+8 which we'd need to factor... I don't think this method works very well on those. lol I know there are online calculators or better and newer calculators that can do it but I have only TI 84 plus.
Theres an easier way under the APPS section. Check it out. Someone else has a video on youtube. This way works but pain too much button action...Just sayin..
of course! you no longer have to factor EVER in college! at the college level, all the "simple" math is just assumed, and you do all the complicated stuff by magic!
fahad... maybe ur missing the point? this wasn't an algebra lesson. i mean, she was demonstrating Ti-84 capability not teach us how to factor... we have to bring something to the table too :)
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This helped me out so much! I've had trouble with factoring for years and you single handedly made it simple enough for me to understand. You're a great teacher. Thank you!
I swear this is the only video that helped me, thank you so much.
you just saved a high school freshman, thank you
you have no idea how much this helped!!!!!!
You are a life saver
Wow this makes factoring so much quicker, great for timed exams.
"But this video doesn't explain why you can simply multiply an expression by 2 and then by 3 and it's mathematically valid. That's a serious problem."
It didn't directly state it, but when she said that x = -3.5 and x = 1/3 she then showed that implies x+3.5 = 0 and x - 1/3 = 0
Multiplying those two together gives you (x+3.5)(x - 1/3) which is equal to 0*0 = 0.
Then since 3.5 = 7/2 she wrote (x+7/2)(x - 1/3)
But keep in mind these are both still = 0 as mentioned above.
(x + 7/2)(x - 1/3) = 0
Multiply both sides of the equation by 2 and the equal sign stays true.
2(x + 7/2)(x - 1/3) = 2*0
(2x + 7)(x - 1/3) = 0
Now multiply both sides by 3 and the equation still stays true because, again, you're doing the same thing to both sides of an equal expression.
3(2x+7)(x - 1/3) = 3*0
Commutative property
(2x+7)*3(x - 1/3) = 0
(2x+7)(3x-1) = 0
And it is still equal to zero just as (x + 7/2)(x - 1/3) form was. It is two versions of the same factored form, one just has integers which is the way we traditionally think of "factoring".
Helping out in 2022!
Thank you some much.. God bless you!
Best tutorial
If you are using the TI 83/84 family of calculators, you should be able to enter your number in decimal form, hit MATH ENTER ENTER, and it will convert to a fraction.
I just purchased the TI-84 Plus Texas Instruments Calculator and I really need a much slower process, do you have other videoes.
Awesome……what is it called when the zeros had fractions in the parentheses and she didn’t want the fractions in the parentheses
Terrific keep it up,. Thank you v much.
How can I accomplish this (steps for number 3) on a TI-81?
Thank so much!
You are a great teacher !
For 6x2+19x-7, using the Quadratic Forumula would be so much easier.
You should be able to go to the Math Department and sign a waiver stating that you will carry around a ti89 and the manual around with you for the rest of your life.
84
Why not just enter Y2 = 0 and then just find the intersection of the quadratic and the x-axis to find any real roots? It's much easier than having to go left of the root and then right of the root. Just a suggestion.
Where can I download free TI 84 Plus?
Hi
I have a Ti-84 Plus, But when i true to do like you do, it dot work, Do I have to download some special program for it, or what is wrong, ?
Show a viedo how to solve with Ti-84 Step by step.
:)
Thanks
I used that calculator in 7th grade doing 7th and 8th together in 1 school year n the next yr i went to 9th
this is college i'm in 8th grade and i am doing this right now, exactly the same thing
Woooooow 😍😍😍😍. In depth everything beautiful! I just wish for more to-83. Thank you. Thank you. Become smarter. Thank you.
Ti-83*.
why is that a confederate flag
That is a confederate flag because of the confederation Chicken.
I put the Nazi flag as my banner on Facebook and I'm sure you know what the Nazi flag means. Now it's pretty much the same for the confederate flag. Facebook banned my account from activity for 24 for making the Nazi flag as my banner on Facebook. I saw someone else have the confederate flag on Facebook and they're profile was still active. Therefore I put the confederate flag on my profile and everywhere. Thank you and have a great day.
Hey, Chicken Pie, why is there a picture of trees on your profile picture?
2:53 so you do the opposite?
You subtract both side so X is alone, but it will most likely be the opposite
Is there an easier/different way to do it? We have some monsterous funcitons like for example 7x^9+3x^4-3x^2+2x+8 which we'd need to factor... I don't think this method works very well on those. lol
I know there are online calculators or better and newer calculators that can do it but I have only TI 84 plus.
yes, press apps, 9, 1, and there u go
but you probably graduated by now
@@jennifers_account when i do that its taking me to probability
Thanks!
my answer wont convert into a fraction?
Ti-89 got factoring option. My money well spent. :D
thanks a lot, great tutorial
thanks
Theres an easier way under the APPS section. Check it out. Someone else has a video on youtube. This way works but pain too much button action...Just sayin..
Its the plysmlt2 app, only in ti83 and ti84 calcs (including ti84+ SE)
too much button action? work it out on paper and u won't have to push any buttons :)
of course! you no longer have to factor EVER in college! at the college level, all the "simple" math is just assumed, and you do all the complicated stuff by magic!
newest comments?
Factoring isn't college level kid, but keep telling yourself that.
But this video doesn't explain why you can simply multiply an expression by 2 and then by 3 and it's mathematically valid. That's a serious problem.
Dude, no. Too intricate.
Your really confusing
fahad... maybe ur missing the point? this wasn't an algebra lesson. i mean, she was demonstrating Ti-84 capability not teach us how to factor... we have to bring something to the table too :)
6th grade...
i see this is an old post... r u still in the 6th grade?