17-05-2016
Mathematics

contestada

what is 3k^2(-2k^2-4k+7)?

A.-6k^3 -k +10k
B. -6k^4 -12k^3+21k^2
C.k^4-k^3+10k^2
D.6k^4 -12k^3+10k^2

I picked B.

Respuesta :

18-05-2016

The answer is B., based on the distributive property (multiply coeffictients, add exponents, change signs because of the negative number being multiplied)

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