$\frac{2x^3-3x+5}{x-2}$

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

$3.5-\left(-4.1\right)$

$9y-10x-4+8x$

$\frac{-2\sqrt{3}}{2}+-\sqrt{3}$

$\frac{1+tan^2\left(a\right)}{csc^2\left(a\right)}+sin^2\left(a\right)+\frac{1}{sec^2\left(a\right)}$

$\int\:9x\:e^{\frac{x}{2}}\:dx$