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

$\frac{d}{dx}\left(\frac{3}{\cos\left(3x^2\right)}\right)$

$4w^2+w+7=0$

$\ln\sqrt{\left(x^2\left(x+2\right)\right)}$

$\frac{-30x^2y^4-45x^2y^3z}{-15x^2y^3}$

$sin\theta\:=0.5422$

$\lim_{x\to3}\left(\frac{10x^2+50x}{x^2-25}\right)$