$\frac{6}{2x}$

$\int\left(x^2+1\right)sin\left(7x\right)dx$

$\left(2-3y\right)^5$

$\left(\frac{2x^{\frac{2}{3}}}{y^{\frac{1}{2}}}\right)^2\left(\frac{3x^{-\frac{5}{6}}}{y^{\frac{1}{3}}}\right)$

$10b+5bc-6c-4b+7bc+c+8bc-9c$

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

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