Apply the Distributive Property:
(2m-4)(m2+2m+4)
= 2m*m2 + 2m*2m + 2m*4 + (-4)*m2 + (-4)*2m + (-4)*4
= 2m3 + 4m2 + 8m - 4m2 - 8m - 16
Now combine like terms:
= 2m3 - 16
J.C. B.
asked 03/17/15
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