9:2:1 Adding and Subtracting Polynomials

Thread Topic: 9:2:1 Adding and Subtracting Polynomials

Mia is Silence Novice

13 years ago

Answer the following problem:

(9x^2+3x-2)+(3x^2-5x-3)
anri hyuga Novice

13 years ago

that is way to complicated for me.
Mia is Silence Novice

13 years ago

*sigh* I know. But I have a test on this today. -_-"
anri hyuga Novice

13 years ago

i feel sorry for you Mia. good luck though.
Mia is Silence Novice

13 years ago

Thanks, I'll do my best :P
anri hyuga Novice

13 years ago

oh and about the thing you said in the cries forum.um....
ThornedRose Novice

13 years ago

12x^2 - 2x - 5
Mia is Silence Novice

13 years ago

Oh, um, sorry.. I was tryin to get Tony to shut up..
Mia is Silence Novice

13 years ago

Oh, thank you rose!
anri hyuga Novice

13 years ago

its okay Mia. i know you weretrying to get himto leave.
ThornedRose Novice

13 years ago

Add 'like' figures. Numbers are my strong point, story problems, not so much.
Appayipyip42 Advanced

13 years ago

ThornedRose is correct.
(9x^2+3x-2)+(3x^2-5x-3)
There is an add sign, so you add:
9x^2+3x^2=12x^2
3x+-5x=-2x
-2+-3=-5
Put it in order
12x^2-2x-5
This is on Khan Academy.

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