$y^2+2y-48$

$2x^2-8x-24\le0$

$\csc\left(x\right)-\cot\left(x\right)=\frac{\sin\left(x\right)}{1+\cos\left(x\right)}$

$\left(3xy^2+\frac{2}{3}y^2-5xy\right)+\left(7y^2+\frac{1}{2}xy^2+7xy\right)$

$\frac{\left(b^{-7}\right)^2}{\left(b^3\right)^3}$

$\lim_{x\to-\infty}\left(\frac{ln\left(x^4+5\right)}{13x+5}\right)$

$\frac{d}{dx}\left(\frac{1+\sin\left(x\right)}{x\cdot\cos\left(x\right)}\right)$