$12+\frac{1}{5}\left(10x+5\right)=59$

$\left(-20\right)-\left(10-15\right)^2+\left|\left(-5\right)+\left(8-13\right)^2\right|$

$-2x^2+250x$

$\:\:\left(5x^2y^3\:+3z^3\right)^2$

$\frac{\sqrt{x}-\sqrt{x+h}}{\sqrt{\sqrt{x}\sqrt{x+h}}}$

$\int\frac{x}{\sqrt[3]{w^3}}dx$

$\frac{dy}{dx}=-3y=2e^{3t}$