Solution
= Solution
Apply the <product rule> and the <chain rule> to the <exponential function>:
$$
\boxed{\frac d{dx}(xe^{-2x})=e^{-2x}-2xe^{-2x}=(1-2x)e^{-2x}.}
$$
= Solution
Apply the <product rule> and the <chain rule> to the <exponential function>:
$$
\boxed{\frac d{dx}(xe^{-2x})=e^{-2x}-2xe^{-2x}=(1-2x)e^{-2x}.}
$$