$\int ye^{0.2y}\:dy$

$\left(y+11\right)\left(y+8\right)$

$\frac{dy}{dx}=\frac{y^2}{\left(1+x^2+y^2+x^2y^2\right)}$

$\lim_{x\to3}\left(\frac{-x^2-2x+3}{x^2-9}\right)$

$\left(1+\sin\left(x\right)\right)\left(1-\sin\left(x\right)\right)\cos^2\left(x\right)$

$4w^3-100w$

$\left(a+4\right)-\left(6-9a\right)-\left(3a-7\right)$