$\left(\frac{1}{\sin^2\left(y\right)}\right)-4$

$-12b^2-4b+16$

$ab^2\sqrt[3]{a^2b}$

$\int\frac{21x^2-6}{7x^3-6x+4}dx$

$\lim_{x\to\infty}\left(\frac{\sqrt[3]{x^2-3x}}{x-2}\right)$

$\left(2d+4\right)\left(3d-4\right)$

$\int\:\left[\sin\left(ax\right)\right]^5\:\left(1-\:\left[\sin\left(ax\right)\right]^2\right)\:\cos\left(ax\right)\:dx$