If f(x)=exxf(x) = \frac{e^x}{x}f(x)=xex, find f′(x)f'(x)f′(x).
ex(x−1)x2\frac{e^x(x-1)}{x^2}x2ex(x−1)
ex(x+1)x2\frac{e^x(x+1)}{x^2}x2ex(x+1)
exx2\frac{e^x}{x^2}x2ex
ex(1−x)x2\frac{e^x(1-x)}{x^2}x2ex(1−x)