factor polynomial by grouping

[rabbifilms]

"[you're] gunna wanna rearrange things so that both groupings are gunna have something to pull out...so lets switch the positions" Now I understand.

[treaduse]

Thanks! Helped me a lot!!! I am normally an incredible student but this just stopped me dead. Now I feel like I know what I am doing! THANK YOU!

[andremccy]

Thank you so much! I was so frustrated with this factoring stuff, you made it so easy to understand. You are a great teacher and you helped me out more than you will ever know! Thanks so much!

[crissnjuan]

Thank you so much for taking the time to help! It really has help me:-)

[Rebel2Geek]

Very good! Thanks! ;-))

[Cynthiam04]

right now i am doing homework on factoring quadratrics, the 2 binomials have to match right? what if they dont, does that mean you cant factor the problem, or is there something i have to do, pleae tell me becaue i am serously freaking out because i really dont understand factoring pplynomials

thank you sincerely

[chins4tw]

Thanks

[sdevon90]

I love Your Voice.!

[daves5820]

I factored by grouping like this: 4 - 2x + 9xy - 18y and got (9y - 2) (x - 2). When I FOILed the check my answer it came out correct as well. Why is this? Thanks!

[1stGenerationGamer]

is this highschool math? i'm doing this in 8th grade at the beginning of the year...

[Jrad629]

@1stGenerationGamer me to its tooo hard :(

[unknownturkmen]

Thank you soooooooooooooooooo much...really helped..i love you <3

[thekristygo]

i cant do factoring by grouping.my teacher keeps explaining dis to me , but i still didnt get it but when i see dis vid, i can do ma excercises:D thankssss

[DaKyler]

You're probably going to be my guide through this next month. I took Algebra I in 7th grade and Geometry in 8th grade... so now I'm going to have to take Algebra II this year, and I've forgotten a great deal :P

[maijib2009]

can you change the signs when you move 15tw to the right and move 3wr to left

thanks

[robichaudd]

@maijib2009 No, don't change their signs. Whenever you reorder terms in an expression, keep the sign in front of a term with that term when you shift things around.

[cCezZ26]

it is indeed a great help .... love it..thank you :)

[shatopretty]

omg thank you soo much, this helped a ton :)

[crl027]

in 3:52 why (2-9y)(2 - x) is the answer? is't because (2 -9y) is the same?

[robichaudd]

@crl027 Yes, because (2-9y) shows up twice in 2(2-9y) - x(2-9y), we can un-distribute it to get (2-9y)(2-x). It's the same process as un-distributing the "b" from something like 2b - xb, which gives b(2-x).

[surfinusa1978]

@crl027 look at the clip starting at minute 3:30. 2(2-9y) - x(2-9y) have (2-9y) as common factor, therefore you can factor out (2-9y) from both terms and using the factorization we end up with (2-9y)(2-x).

[blackroseofpain1]

I always hated math... X-@

[shutupiownedu]

Thank you. This helped A LOT. I was out the day we learned this lesson in school, and my teacher could only help me the day of the test, so I had to find a way to learn it and fast. It's ten times easier than what I thought.

[fgunton]

Thought this was fun to watch I learned the factoring method pretty easily thanks to Mrs Robin..

[drprofessorspongebob]

on problem 25, how did she change the sign to a positive (3w+r) and not change the -5t to a positive 5t??? Don't you have to make the entire thing opposite?

[robinreape]

Thank you so much! i was so stressed but this helps a ton!

[Dorian73]

my brain hurts!

[MilanChamling]

12p^2-6qr+4pr-18pq is the question to factor

Ans A: (4p-6q)(3p+r) or

Ans B: (6p+2r)(2p-3q)

which of the above is the correct answer?

Can I have more than one answer?

[boogie2458]

Woah , i looked at my paper, did it right *instant mind blown ! thank you magic marker teacher lady ! :)

[mockingbird369]

what about 5 terms......

[aussieattack]

i was staring at her magic pen marks the whole time, Well, Im fucked.

[rhanjaG23]

THAANKK YOUU, i finally get this stuff, i can help others now :)

[MsVicky1996]

Wow thank you so much.. it really helped.... Unlike my teachers skills!! :)

[ZaChArYcHuSgAl]

OMG I love you! I didn't understand this for the whole 2wks and I have a test tomorrow and I watched this so now I finally get it. Thank you, thank you!!

[AnimationAnimater12]

im dropping out of school and gonna enroll in youtube school of mathematics

[anqelblood02]

tnx qlnq oH

[madregoose]

the term "left overs" just helped me a whole lot with this.

[shebna12]

Thank you!(100000000000x)

[RaPeSQUADps3]

this is so much better than school dont believe me heres an example School: kid wakes up dam i fell alseep ... we have a test tommorrow FML

Youtube: kid wakes up dam i fell asleep.... i have a test tommorrow and Uhh!! oh replay:)

[devilman819]

@RaPeSQUADps3 LMAO that is literally what im doing right now xD I have to go to school like in an hour and I have a math test..fml

[DreiHundertftw]

Everything I look at doesn't help me at all, :|. I hate math, I wish it would die in a fire. I havent taken a math class in over a year, and I'm just now put in algebra 2 with a bunch of fresh minded underclassmen... WTF -- I'm so pissed...

[bef366]

THANK YOU SOOOOOOOOOOOOO MUCH! ILY FOR THIS! :D

[03aug1998]

 now I get it. THANKS. :">

[sarela90]

Thank you so much!!!!!!

this really helped me alot!

[r0xb0xx]

Thank you for taking the time to make this video. My teacher assigned this homework without lecturing about it...not sure if she noticed, but I sure did! :/

Thank you, thank you, thank you!

[cuhbannteeng]

this helped me out so much. Thanks=)

[007CookieKiller]

OMG TY TY TY TY TY TY TY TYVM :D *Does Happy Dance*

[FartinPandaKarateKid]

Helped a lot thanks

[Raminan4eva]

Uh thnks v.much i wish all MATH teacherz were to be like you u saved my life

[luis8606]

AAAAHHHHHH TAHNKKK YOUUU, YOUR SOOOO HELPPPPFULLLLLLLLLLLLLL

i hate my teacher for sucking at teaching math

[mods245]

Why can't all the math teachers be this good

[codywtribble]

Thanks now i get this =D

[moses453]

This helped so much. Now I won't see a big F on my next test. My teacher DID NOT explain this well. Thanks

[TheCharraZ]

Math sucks sooo much, quantum mechanics forever!

[Commenteronlylolz]

Thank you, wish you were my math teacher .He doesnt teach the hard questions that are in the test!

[latin01180]

wow... THANK YOU!

[mmmmitchy]

Thanks a lot for this video, I just watched countless videos on how to factor by grouping, and this one made things click for me.

[gregghoran]

thank you so much, my teacher doesnt know how to teach and this helped a ton

[dlwill80]

@gregghoran  same here

[Axle8558]

TY! Now i can get back to getting straight A's.

[ElliMayWho]

How would you do this problem?

x^(2n+1)-10x^(n+1)+25x=

[dasha9521]

Thank you've helped me so much, I get it know. My math teacher was going really fast with this and I didn't get anything.

[brianotradovec]

this helped me alot better than at school. I think its the environment or the teacher but thankyou this helped with my homework!

[ZaMuMx]

thank you 5 stars

[JuniperusJosh]

thank you! i kept getting confused about the part at the end (with the GFC and taking it out) and you were the only person on the internet that could explain it to me. thanks!

[1Gr1mm]

thanx a lot xD now I actually learned that, you rule ^^

[AmazinAaron9]

thanks for that video. You explained it a lot better than my teacher.

[shithappens1988]

why is math so hard i hate math -_- ahhhh

[bloodandviolence49]

The essence of mathematics is not to make simple things complicated, but to make complicated things simple.

[ManoloG]

THANX!

[crin28]

Yes! I remember now!!! Thanks!

[Depsey101]

lol me to, it jogged my memory and i can do it perfect now!!

[bbizzle582]

screw this dude.thanks for TRYING to help but these commenters are lying to make you feel better or something.or maybe im just add.but this DID NOT help. ha wow.

[hulaxhoops]

you. are. amazing. thank you. so much.

[ReyesDeyla]

awesome! i love u! your my new heroe! lol....it was really helpful.

[stunnaasskid]

thank you so much for this video..you make it so much easier now

[manbearpig1962]

thank you!

[ijapanrobot]

nice. so simple.

[dfts22e]

The whole problem would be easier if you group "9xy-18y+4-2x" so you can factor a "9y" in the first group followed by "(x-2)." Secondly, factor a "-2" from the 2nd group and get "-2(x-2)." Since "(x-2)" is common, factor that out and you are lefe with "(9y-2)(x-2)." Note: (9y-2)(x-2)=(2-9y)(2-x), check it by plugging in x=3 y=4, the answer will be 34.

[AhYaOk]

yeah, you're right. anyway, its the same thing.

[Huddiethegreat]

good stuff, i always group them wrong.

[Enaphoolad]

Right, good good :) But the last time I rewrote my term I made a big mistake and grouped the wrong terms together ;p