$\left(5ab^2+6\right)^3$

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

$\lim_{x\to\infty}e^{\frac{x}{100}}$

$6\left(x+2\right)-\left(4x\right)$

$\frac{du}{dt}=84yx^{11}$

$\frac{5}{3x-4}=\frac{2}{x-1}$

$\left(x-y\right)\left(4x+y\right)dx+x\left(5x-y\right)d$