# How do you differentiate f(x)=e^(-2x^2+x+1)  using the chain rule?

Jul 30, 2016

I found: $f ' \left(x\right) = \left(1 - 4 x\right) {e}^{- 2 {x}^{2} + x + 1}$
$f ' \left(x\right) = \textcolor{red}{{e}^{- 2 {x}^{2} + x + 1}} \cdot \left(\textcolor{b l u e}{- 4 x + 1}\right)$