If f(x)=ex2f(x) = e^{x^2}f(x)=ex2, what is f′(x)f'(x)f′(x)?
2xex22x e^{x^2}2xex2
ex2e^{x^2}ex2
x2ex2−1x^2 e^{x^2-1}x2ex2−1
2xex2x e^x2xex