Question

Tolong bantu ya a dan b,please...
Kasih bintang lima deh..

Answer 1

A) f(x) = (x^2 - 2x)(x + 1) = x^3 + x^2 - 2x^2 - 2x = x^3 - x^2 - 2x
f'(x) = 3x^2 - 2x - 2

b) f(x) = 3x(4x^2 + 2) = 12x^3 + 6x
f'(x) = 36x^2 + 6