$\left(3x^m+4y^n\right)\cdot\left(3x^m-7y^n\right)$

$\int_s^{\pi}\left(\frac{v^2\sin^2\left(x\right)}{2\pi}\right)dx$

$\int\left(\frac{1}{9x^2-144}\right)dx$

$\cos\left(1\right)\cdot\csc\left(1\right)$

$4+2\cdot3-5-2\cdot7$

$\int\frac{32x^2}{\left(x-9\right)\left(x+3\right)^2}dx$

$\int_0^{\infty}xe^xdx$