$3x+2<\frac{7x}{2}$

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

$c^2-19c+84$

$\lim_{x\to-1}\left(x^3\cdot\sqrt{x+2}\right)$

$\int\left(\frac{4}{\left(3-2e^{2x}\right)e^{-2x}}\right)dx$

$\lim_{x\to0}\left(\frac{3\sin\left(x\right)-\sin\left(3x\right)}{x^3}\right)$

$\lim_{x\to-3}\:\left(\frac{2}{x+2}\right)$