Posted by **shelly** on Tuesday, June 23, 2009 at 10:57am.

Could you help me subtact this polynomials? (-8a^2+4a+2)-(8a+2)=

- college math -
**MathMate**, Tuesday, June 23, 2009 at 11:06am
Expand (remove parentheses) and collect terms in decreasing powers of a:

(-8a^2+4a+2) = -8a^2+4a+2

-(8a+2) = -8a-2

Since the subtraction is implied in the negation of the secnd expression, you only have to **add** the two resulting expressions and regroup in decreasing powers of a.

Post your results if you need confirmation of the answer or additional help.

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