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August 23, 2014

Homework Help: calculus

Posted by shirlee on Tuesday, May 15, 2012 at 6:38pm.

f(x)=(2x-1)^2(x^2-9)
find f'(x)=0
So first derivative:
f'(x)=16x^3-6x^2-70x+36
0 = 16x^3-6x^2-70x+36
Ok.. I know I should factor it somewhere.. I just couldn't see where..

Thanks!

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