$\left(3x+2\right)\left(x+3\right)$

$\frac{2n^{-2}}{\left(n^2\right)^{-2}}$

$5a\sqrt[3]{160x^7y^9u^{13}}$

$\left(2+a\right)^3\left(2+a\right)^{\frac{1}{4}}\left(2+a\right)^{\frac{3}{2}}$

$\left(2x+6y\right)\left(4w+3z\right)$

$\int\frac{\cos\left(3x\right)}{\sin^5\left(3x\right)}dx$

$10\sin^2x=5-5\cos2x$