Oh my gosh thank you so much, I've been trying to learn how to do this for such a long time, I watched videos online and all of them are alI really confusing and takes a long time, this one is so quick and easy thank you so much!!!
I missed class today and this type of questions were given for homework. The teacher taught the rest of my class how to solve them this afternoon, so I had no clue. After watching this video a couple of times, I solve them like a pro. Thanks!!!
Thanks J. Torrez... RUclips started picking up this last year... check out my channel at ruclips.net/user/hunkimtutorials ... this is the one that I check regularly
Thanks for your comments folks... I don't monitor this channel regularly... visit ruclips.net/user/hunkimtutorials ... subscribe and I can try helping you with math :)
You're very welcom biglong.... sorry for the late reply... I don't check this channel very often... my active channel is at ruclips.net/user/hunkimtutorials I have some math tutorials there also... I may be able to provide some help..
My students enjoyed using your method. However, we found that we needed to make sure that if there is a common monomial factor that we take it out first in order to have the correct solution. Do youfind this to be true?
cfirth314, yes when factoring, we should always pull out the GCF first.... however this method can still work if you don't... but then we may end up with answer like (2x - 2)(3x +1).... notice that this is not fully factored... we can still pull out a 2 from (2x - 2)
I have a question, I applied this to another problem and got half of it correct but the other I was unsure what to do with it. It begins as 2x^2 - 5x - 7. When I got down to (x - 3 1/2), I moved the 2 and got (2x - 3). The correct answer to that parenthesis should be (2x - 7). What did I do wrong?
Cat T, you're right that large numbers are painful... but I don't think there's a much better way to factor... some students use a "cross" method of factoring... which is generally faster for easy questions where students can quickly swap different numbers in their head... however when the question gets large, this systematic rainbow method works better.
Hi Ivy, yes this always works for a values not equal to one. ax^2 + bx + c .... when a is equal to one, you should be able to attack the answer directly without this "kung-fu" trick
Thanks guys, I'm surprised more math teachers don't share this technique!
i do not understand how this works but im glad it does
Oh my gosh thank you so much, I've been trying to learn how to do this for such a long time, I watched videos online and all of them are alI really confusing and takes a long time, this one is so quick and easy thank you so much!!!
I missed class today and this type of questions were given for homework. The teacher taught the rest of my class how to solve them this afternoon, so I had no clue. After watching this video a couple of times, I solve them like a pro. Thanks!!!
mind blown! thank you!!!
You should definitely start posting more man, great quality and concise
Thanks J. Torrez... RUclips started picking up this last year... check out my channel at ruclips.net/user/hunkimtutorials ... this is the one that I check regularly
Thanks for your comments folks... I don't monitor this channel regularly... visit ruclips.net/user/hunkimtutorials ... subscribe and I can try helping you with math :)
Wow. Thanks so much. Totally just saved me like thirty minutes of my life. Thank you!!!
Thank you so much!! I am going to use this to pass my test tomorrow. I could not factor at all and now I can factor all trinomials!
most helpful video i have came across, thankyou!
You're very welcom biglong.... sorry for the late reply... I don't check this channel very often... my active channel is at ruclips.net/user/hunkimtutorials I have some math tutorials there also... I may be able to provide some help..
My students enjoyed using your method. However, we found that we needed to make sure that if there is a common monomial factor that we take it out first in order to have the correct solution. Do youfind this to be true?
cfirth314, yes when factoring, we should always pull out the GCF first.... however this method can still work if you don't... but then we may end up with answer like (2x - 2)(3x +1).... notice that this is not fully factored... we can still pull out a 2 from (2x - 2)
Thank you so much for this video! I just had a moment of clarity, haha.
I have a question, I applied this to another problem and got half of it correct but the other I was unsure what to do with it. It begins as 2x^2 - 5x - 7.
When I got down to (x - 3 1/2), I moved the 2 and got (2x - 3).
The correct answer to that parenthesis should be (2x - 7). What did I do wrong?
Thank you so much!! You are a God!!!
You are amazing, thank you, thank you, THANK YOU!!!
Awesome Video thanks so much!
"...because were using this cool Kung Fu trick..." Lol, kung fu trick? What is that supposed to mean?
omg this is great !!!!
More free videos at www.hunkim.com :)
YOU ARE A GENIUS
Why aren't you my math teacher? :(
Thanks DaklipOfficial... nice that nowadays there are tons of free resources online to supplement learning
THANK YOU!
This is amazing. Thanks man!
one question. this method doesnt work very well when the product of the a and c value make a large number ie. 579?
Cat T, you're right that large numbers are painful... but I don't think there's a much better way to factor... some students use a "cross" method of factoring... which is generally faster for easy questions where students can quickly swap different numbers in their head... however when the question gets large, this systematic rainbow method works better.
thanks :)
i love math! it's like doing magic!
Magic! thank you so much! does this always work?
Hi Ivy, yes this always works for a values not equal to one. ax^2 + bx + c .... when a is equal to one, you should be able to attack the answer directly without this "kung-fu" trick
thanks alot, that was very straight forward and helped me with my homework....quadratics are a bitch
THANK YOU!