$\frac{2}{3}\cdot\frac{3}{2}$

$-93\cdot31$

$\frac{1}{2}\int\frac{1}{y}+\frac{1}{y+1}+\frac{1}{y-1}dy$

$\frac{d^3}{dx^3}\left(cosx\right)$

$\frac{d}{dx}ln\left(\frac{x^2}{e^x}\right)$

$2+x=\left(2+x\right)^2$

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