Question

Find the critical numbers

Answer 1

\[x^2e^{-3x}\]

Answer 2

\[x^2\frac{ 1 }{ e^3 }+2x(e^{-3x})\]

Answer 3

\[\frac{ x^2 }{ e^3 }+\frac{ 2x }{ e^{3x} }\]

Answer 4

you might want to try that derivative again