$x^2+14x+48\ge\:0$

$\lim_{x\to0}\left(\frac{x^2-\arctan\left(x\right)^2}{\sin^2\left(x\right)}\right)$

$\left(2u+1+2p\right)\left(2u+1+2p\right)$

$\int\frac{1}{\left(x+9\right)\left(x+7\right)}dx$

$\left(-2\right)-\left(-10\right)$

$2\log\left(x\right)=\log\left(30+x\right)$

$\frac{1+sin^2\:\left(\frac{x}{2}\right)}{1+cos^2\left(\frac{x}{2}\right)}$