$\left(x-7\right)\left(x-2\right)\left(x+2\right)$

$\int\frac{\senx}{\sqrt{\cos x+5}}dx$

$\frac{d}{dx}x^4\:\:+\:3y^3\:\:-\:cos\:x\:\:=\:2$

$-5-1-4+1-3$

$\left(\frac{1}{3}x^{-1}-\frac{1}{2}y^{-\frac{1}{3}}\right)^2$

$81y^4+180y^2+100$

$\int sen^3\left(2x\right)cos^7\left(2x\right)dx$