SOLUTION: Factor each expression a2(b - c) - 16b2(b - c)

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Question 107413: Factor each expression
a2(b - c) - 16b2(b - c)
Answer by Annabelle1(69) About Me  (Show Source):
You can put this solution on YOUR website!
(b-c) is the common factor. Pull in out to the front
%28b-c%29%2A%28a%5E2-16b%5E2%29
%28a%5E2-16b%5E2%29 is a difference of two squares so it factorises to
%28a%2B4b%29%28a-4b%29
we now have
%28b-c%29%28a%2B4b%29%28a-4b%29