$-9-\left(-22\right)\:$

$\int\left(3\cos\left(x\right)\right)dx$

$\int_{-2}^2\pi\left(\left(9-x^2\right)^2-\left(x^2+1\right)^2\right)dx$

$4x^2+4x+49$

$\lim_{x\to4}\left(\left(\frac{\left|4-x\right|}{x^2-11a+28}\right)\right)$

$dr\cdot sen\:x=2\cdot r\cdot cos\:x\cdot dx$

$e^{\sin\left(6x+3y-18\right)}\cos x^2y^4$