$\int\left(x^2\sqrt{8+x^2}\right)dx$

$\left(\frac{9}{7}\:z\:^3+\frac{2}{5}\:f\:^3\right)^2$

$2\left(-2\right)^2+5\left(-1\right)\left(-2\right)+\left(-1\right)^2$

$\frac{\left(a+b\right)\cdot\sqrt{\frac{a-b}{a+b}}}{a-b}$

$\left(5x-5\right)+\left(5x+1\right)$

$\frac{1}{5}m-20$

$\frac{2}{3}x=-12$