Question

Differentiate.
\[y=(r^2-3r)e^r\]

Answer 1

dy/dr=\[e ^{r}(r ^{2}-3r)+(2r-3)e ^{r}\]

Answer 2

you can simplify more to
(r^2 -3r+2r-3)e^r
=(r^2-r-3)e^r