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December 19, 2014

December 19, 2014

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

- college math -
**MathMate**, Tuesday, June 23, 2009 at 11:06amExpand (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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