$\frac{d}{dx}\frac{3}{\sqrt[3]{x}}$

$\sec\left(x\right)^2+\csc\left(x\right)=\frac{\cot\left(x\right)}{\cos\left(x\right)}+\frac{\sec\left(x\right)}{\cot\left(x\right)}$

$\frac{dy}{dx}\left(y=\frac{16}{x^5}\right)$

$\left(t^2+3x\right)\left(t^2-3x\right)$

$y^2+y-72$

$2\tan^2x-\tan x+3$

$\left(2g-9\right)\left(2g+9\right)$