$\lim_{x\to\infty}\left(\frac{x^8-34}{x-3}\right)$

$x^2+20x+80$

$\frac{d^5}{dx^5}\left(3x+5\right)^8$

$\left(n+4\right)\left(n-4\right)$

$12-9\cdot5+10$

$\lim_{x\to\infty\:}\left(\frac{x+1}{x}\right)^{3x}$

$\int_0^3\left(\left(x^2-4x+3\right)-\left(2x^2+2x+3\right)\right)dx$