jika f(x)=(x^3-4x^2)(2x-1) maka turunannya adalah

misal
u = x^3-4x^2
v = 2x -1

f(x) = u . v
f'(x) = u'v + uv'
f'(x) = (3x^2-8x)(2x-1) + (x^3-4x^2)(2)
f'(x) = (3x^2-8x)(2x-1) + 2x^3-8x^2