Question 960407

h(x)=6x^2(8x+5)^4 and evaluate at x=3
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h' = 12x*(8x+5)^4 + 6x^2*4*(8x+5)^3*8
h' = 12x*(8x+5)^4 + 192x^2*(8x+5)^3
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h'(3) = 36*29^4 + 192*9*29^3
h'(3) = 67606308