$4a^2b+20abc$

$\left(2xv-5xs\left(2xv+5xs\right)\right)$

$\frac{\cos\left(\theta\right)-1}{\cos^{2}\left(\theta\right)}=\sec\left(\theta\right)-\sec^{2}\left(\theta\right)$

$\left(28.5\right)-\left(-5.9\right)$

$\int_0^2cy^2dx$

$\cos\left(2x\right)\cos\left(x\right)=\cos^3\left(x\right)-\cos\left(x\right)\sin^2\left(x\right)$

$\left(-\sqrt{2}\right)^2$