$\lim_{x\to\infty}\left(x+32x^2-x+1\right)$

$\int\frac{1}{x\left(\sqrt{9-x^2}\right)}dx$

$\lim_{x\to\infty}\left(1+\frac{4}{n}\right)^n$

$\frac{16x^3-4x^2+8x^5}{-4x^2}$

$\frac{dh}{dt}=\frac{-3}{100}\cdot sqrt\left(h-18\right)$

$-.8x+40-8x-35$

$8m^2-12m=4m\left(2m-3n\right)$