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

$\frac{7}{12}\left(3^3\right)\left(2^2\right)\left(5\right)$

$\left(\frac{3}{5}x^4-\frac{6}{7}x^3\right)^2$

$\left(3x-4\right)\left(x+5\right)$

$16y^2+24y+9$

$\frac{csc^4x-2csc^2x+1}{cot^2x}$

$\frac{d}{dx}\left(x^2+4xy-3x+y^2+y=2\right)$