$x2+14x+48$

$\lim_{x\to-5}\left|3x-2\right|$

$\frac{d^3}{dx^3}\left(-\frac{3}{10}x^5+\frac{1}{8}+\frac{1}{3}x^2\right)$

$\int\frac{cos\:x}{\left(sen\:x-3\right)^2}\:dx$

$\left(3+2\right)^2-122$

$\left(arctan\left(\frac{y}{x}\right)=\ln\left(x\right)+\ln\left(c\right)\right)$

$a^2-2a+1=0$