$14\left(99\right)$

$4x^2+\:7\:+\:2x^2+\:3$

$\frac{x^3-2x^2-x+2}{\left(x+1\right)\left(x^3-x^2-4x+4\right)}$

$\lim_{x\to0}\left(\frac{e^x-ln\left(e+x\right)}{x^2}\right)$

$\int\left(5.4\sqrt{-3x+4}\right)dx$

$-\:\left(-4\right)\:x\:7\:x\:\left(-1+1\right)$

$\cos\left(x\right)\sin\left(x\right)\left(\csc\left(x\right)\cdot\sec\left(x\right)\right)$