$64x^14\:-128x^7y^2+256y^4$

$\frac{-x^3-4}{x^2}$

$\frac{dy}{dx}=x^9$

$\sec^2\left(x\right)\tan^2\left(x\right)=\tan^4\left(x\right)+\tan^2\left(x\right)$

$9-\left[\left(-5\right)\right]-\left(\left[-7\right]\right)$

$\int\frac{\left(4x\right)}{\left(x+2\right)\left(x^2-1\right)}dx$

$\left(\frac{1}{4}x+\frac{2}{3}y\right)^2$