Posted by Adriana on Thursday, June 7, 2012 at 11:56am.
(7ab+4a2b4)+(a2b47ab)
The 2 and 4 are on top of the a and b. (sqare #)

Math add the polynomials  MathMate, Thursday, June 7, 2012 at 12:09pm
You need to find the like terms, for example, a²b^{4} and 4a²b^{4} are like terms.
You can add them together to make 5a²b^{4}.
So
a²b^{4}+4a²b^{4}=5a²b^{4}
Like terms must have the same variables each raised to the same power. We can add like terms by adding the coefficients, as we did above.

Math add the polynomials  Adriana, Thursday, June 7, 2012 at 12:20pm
ahh so the 7ab cancels because of the 7ab so answer is 5a²b4. I thought it was 4a4b8
Thank you

Math add the polynomials  Damon, Thursday, June 7, 2012 at 12:22pm
yes 7 a b  7 a b = 0
and the answer is
5 a^2 b^4

To Adriana:  MathMate, Thursday, June 7, 2012 at 12:46pm
Your answer is correct.

Math add the polynomials  Adriana, Thursday, June 7, 2012 at 12:49pm
so its 4a^2b^8?

Math add the polynomials  MathMate, Thursday, June 7, 2012 at 1:08pm
I mean this is correct:
"ahh so the 7ab cancels because of the 7ab so answer is 5a²b4."

Math add the polynomials  Henry, Friday, June 8, 2012 at 6:53pm
Post it.

Math add the polynomials  MathMate, Friday, June 8, 2012 at 7:47pm
"...so answer is 5a²b4"
Answer This Question
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