$\int\frac{\left(x^3-2x^2-5x+8\right)}{\left(x+2\right)}dx$

$4x+5y-2x+3y-x-7y$

$\left(y-x\right)dy-\left(y-x\right)dx$

$\int\frac{32}{x^2\sqrt{x^2+36}}dx$

$\frac{dy}{dx}\left(x^2+11xy+y^2=7\right)$

$\tan^2\left(90-b\right)+1$

$y'=\frac{e^{6x}}{y^2},\:y\left(0\right)=2$