$2x^2\:\:7x\:\:\:15\:\:0$

$\left(\frac{6}{5\sqrt[3]{3x}}\right)\left(\frac{-6}{-5\sqrt[3]{3x}}\right)$

$\tan^2\left(x\right)-\sin\left(x\right)=\tan^2\left(x\right)$

$\int\frac{x}{\left(x-3\right)\left(x+2\right)}dx$

$a^2-a^2+4a^2-a^2+a^2b-2a^2b+9$

$\int\frac{\left(2x^3\right)}{\left(x^2+1\right)^2}dx$

$3\csc\left(x\right)=2\sqrt{3}$