$2f^2\sqrt{3f}$

$\left|2\cdot\left(-5\right)\right|\cdot\left(-7\right)$

$y'=\frac{-3+x^2}{y^2}$

$\frac{1}{\cos^2\left(x\right)}=\sin^2\left(x\right)\cdot\cos^2\left(x\right)+\cos^4\left(x\right)$

$\int\frac{1}{x^3+4x^2+x-6}dx$

$9b^2-30b+25$

$\frac{\left(x+2\right)}{\left(x+7\right)\left(x-9\right)}$