$\int_{-2}^22xdx$

$\lim_{x\to-2}\left(\frac{-4\left(x+2\right)}{9x^{\frac{5}{3}}}\right)$

$\frac{1}{2\:}-\left(-3\right)-0.4$

$\int\left(\frac{1}{4}x\cdot e^{\frac{5}{8}x^2}\right)dx$

$\left(6x^6y-5x^7\right)^2$

$20x^2-59x+105$

$3f\:+\:f\:+\:2f\:-\:8f\:+\:4f\:+\:3f$