$2m^2-4m$

$\left|3-\pi\right|+3$

$\int_{-15}^{-5-5\sqrt{2}}\left(\frac{1}{\left(x+5\right)\left(\sqrt{10x+x^2}\right)}\right)dx$

$22x-20>40-8x$

$26\:-\:\left(9\:-\:18\:-\:6\right)$

$\int_{0\:}^{10\:}\frac{1}{10}\left(\cos\left(8x\right)e^{\left(-4x\right)}\right)dx$

$3+\left(-5\right)\cdot\:\left(4-3\right)$