$158.900+129.200$

$3a^2-5a-2$

$-\frac{1}{3}xy+\frac{1}{6}xy$

$\int x\:\left(\sqrt[3]{1+x^2}\right)dx$

$\frac{\left(m+n\right)^2-z^2}{\left(m+n\right)-z}$

$\left(5p^4+3q^3\right)^3$

$\frac{\sin^2\left(x\right)}{2}-\cos^3\left(x\right)+\cos\left(x\right)$