$\frac{\sqrt{\left(2+4\right)\left(2-2\right)^4}}{\left(3\left(2\right)-6\right)^2}$

$\int\frac{5x^2-x+6}{x^3+2x-3}dx$

$100^1$

$\frac{x^2-1}{\left(x+1\right)^2}$

$\left(9x-4y+4\right)dx=\left(2x-y+1\right)dy$

$\frac{1}{csc^2x-1}$

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