$\int\frac{x}{\left(x-4\right)^3}dx$

$\left(2w^2\right)\left(1w+3\right)$

$\left(12+x\right)^2$

$\frac{x+1}{2}-\frac{3x-1}{4}$

$\lim_{x\to4}\left(\frac{x-4}{\left|x^2-16\right|}\right)$

$\left(1-2f\right)^4$

$\int_1^{\infty}\frac{\frac{3}{2}\left(x^2\right)}{x^3+1}-\frac{1}{3x+1}dx$