college math
posted by shelly on .
Could you help me subtact this polynomials? (8a^2+4a+2)(8a+2)=

Expand (remove parentheses) and collect terms in decreasing powers of a:
(8a^2+4a+2) = 8a^2+4a+2
(8a+2) = 8a2
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.
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