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Posted by **Lourane** on Wednesday, June 6, 2012 at 9:12am.

-7(2a^-4)

would the correct answer be

14^+28

- c0llege math -
**MathMate**, Wednesday, June 6, 2012 at 10:30amTo do

-7(2a^{-4})

you only have to multiply -7 to the coefficient of 2 to get

-14a^{-4}

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