given curves f(y)=y(2-y) f(y)=-y

I graph the curves as y=x(2-y) and y=-x rotated 90 degrees clockwise.

This is the setup for the the integral.

A= integral [right-left]

$\displaystyle

\int_{-3}^0(y(2-y)-(-y))dy

$

but When I solve I end up with a negative value