SOLUTION: Find f '(−4), if f(x) = (5x2 + 6x)(3x2 + 7). Round your answer to the nearest integer. Use the hyphen symbol, -, for negative values.
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Question 987755: Find f '(−4), if f(x) = (5x2 + 6x)(3x2 + 7). Round your answer to the nearest integer. Use the hyphen symbol, -, for negative values. Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! Find f '(-4), if f(x) = (5x2 + 6x)(3x2 + 7)
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f'(x) = (10x+6)*(3x^2+7) + (5x^2 + 6x)*(6x)
f'(-4) = (-40+6)*(48+7) + (80-24)*(-24)
= -34*55 + 56*(-24)
= -3214
