$\left(x^5-3x^4+3x-1\right)$

$100\cos\left(x\right)=\left(\frac{36}{\cos\left(x\right)}\right)$

$\frac{dy}{dx\:}x+2y=0$

$\frac{3\left(\infty\right)^2+2\left(\infty\right)-1}{4\left(\infty\right)^2+6}$

$\left(5x+2y-11\right)^2$

$\frac{sec^2x-1}{tan^2x}$

$3m^2\cdot\left(5m-7n\right)-3m\cdot\left(2m^2+4n\right)$