Question

differentiate f(x) = xe^-x

f'(x) = 1(e^-x) + x((e^-x)(-1)
f'(x) = (e^-x) - (xe^-x)
f'(x) = (e^-x) (1 - x)

edit: figured it out while typing it out

Answer 1

looks good

Answer 2

Thanks PearlVision!

Answer 3

glasses in under an hour