$-5-45-15+445+420$

$\lim_{x\to\frac{n}{6}}\left(\cos x+\sin x\right)$

$10\left(x\right)^3\left(8\right)$

$0.05\:\left(-5\:\left(28\:y\:x^{\left(a\:+\:2\right)}\:+\:x\:\left(28\:y^{\left(a\:-\:3\right)}\:+\:9\right)\right)\:-\:64\:a\:x\right)$

$-8^2+1$

$\frac{1}{100}\int x^3\cdot e^{-\frac{x}{10}}dx$

$\int x^33^xdx$