$\int_1^{\sqrt{8}}\left(\frac{9}{1+x^2}\right)dx$

$\left(x^a\right)^b$

$\sqrt{2}\cos x-\sqrt{2}\sin x=1$

$\frac{5r\left(s^0t\right)^{-3}}{\left(5st^2\right)^2}$

$f\:\left(x\right)=\:\frac{1}{3}x\:\frac{3}{7}-x\frac{1}{3}x\frac{1}{2}$

$-4m+50$

$\int\left(7x-2\right)^2dx$