Prealgebra 10.2a - Adding and Subtracting Polynomials

[KPVickers420]

You explain it too clearly, I dont know what my teacher is thinking

[backspace337]

Apparently there is a mistake, what is the mistake? And what is the correct answer? (LCC)

[backspace337]

@backspace337

7:22 Found it.

[backspace337]

@backspace337

Correct answer BTW is:

7x^(2)+12x-9

[XtheNinja]

same here my stanky breath ass teacher dont teach shit she juss give it to us and so i dont knw hoow to do it so now i do because of this nice video that i just watched and now i can d my homework confidently and i am a student at normandy naamed darnell alexander thank you very much now i under stand every thing

[mikeykassem]

GOD BLESS YOUR SOUL!!!!!!!!!!!!!!!!!!!!!!!!!

[chopath]

whats the reason to learn add and subtract polynomials?

[luvbeingmama83]

this was really helpful. it was the first video i saw that helped me understand this crap.

[Cutiepie91126]

Dude you are a big help thanks so much.xoxoxoxo

[pingpong1138]

Thanks!!! I suck so bad at math and this helped alot!

[1Porcsha]

THank U soo much . .i had a sub 2day && she was not there 2 teach but to jus make sure everybdy is there & good . . soo i had 2 teach myself this !! soo i was jus mkin sure i did it right . SOOO Thank U aqain . lots of HELP !!!

[XxfluffybunnyX]

THANK YOU SOOO MUCH YOUR VIDEOS ARE EXTREMLEY HELPFUL!!!(:

[CVetteMan1111]

You can also line them up virtically the first term on top of the second term. Like terms aligned with each other and then you can add or subtract like a reg addition or subtraction problem. Excellent examples

[JeRseybOy251]

thanks dude, i got a test on this tomorrow, so thanks a lot,

ps- you sound like george bush

[ClanHDxP]

my teacher sucks HUGE BALLS! its so hard to understand its like he doesnt even do anything!

[weoyondo]

Another way to explain why the numbers in the second parenthesis change is to put a 1 before the parenthesis. So as an example:

1 (8x'2 + 9x + 5) -1 (3x'2 + 7x + 1)

+1 time 8 equals 8, 1 time 9 equals 9, 1 time 5 equals 5.

-1 time 3 equals -3, -1 times 7 equals -7, -1 times 1 equals -1.

Anyone smarter than me who can tell me if I'm right?

[derekowens]

Yes, that's a very good way to explain it. I have heard that referred to as "distributing a silent negative one."

Thanks,

D.O.

[ziad1428]

well explained

[1510al]

Sweet!

[DEdesigns57]

very crsip amd clear, easy to follow. I dont know what sofware you used to make this video but it is great. The expressions come out nice and clean and neat which is important when first learning this stuff. Thx