$\int\left(x\cdot\cos\left(3x^2+4\right)\right)dx$

$\int\frac{5x-2}{\left(x-1\right)^2}dx$

$\left(-5+\sqrt{3}i\right)\left(3-\sqrt{3}i\right)$

$\int_{-\infty}^{-9}\left(\frac{80}{x^2-64}\right)dx$

$\left|-5\right|>\left|-2\right|$

$\frac{\left(3y^3+2y^2-7y+2\right)}{3y-1}$

$c+4c^2$