Calculate f′(x)f'(x)f′(x) for f(x)=(x2−1)4f(x) = (x^2-1)^4f(x)=(x2−1)4.
4(x2−1)34(x^2-1)^34(x2−1)3
8x(x2−1)38x(x^2-1)^38x(x2−1)3
8(x2−1)38(x^2-1)^38(x2−1)3
x(x2−1)3x(x^2-1)^3x(x2−1)3