$\int_{-1}^2\left(\frac{1}{1+\frac{y^2}{9}}\right)dy$

$\left(xy^2\right)\left(3y^2\right)$

$\int\left(2x+7\right)\left(x^2+7x+4\right)^4dx$

$\int\left(y+5\right)\left(y-3\right)dy$

$2\sec\left(360\right)$

$y=\left(4x+\cos\left(x\right)\right)^2$

$\int\frac{5x^3-12x-12}{x^3-4x}dx$