$\frac{4x^3\cdot3x^2}{2x^4}$

$\frac{dx}{dy}=x^2-2x+2$

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

$\frac{x^2+x+1}{x+1}$

$\sqrt[4]{x^{12}}.\:\sqrt[3]{x^9}.\:\sqrt{x^6}$

$\frac{-\frac{1}{2}}{y^2}$

$-\left(3\right)+\left(-3\right)-\left(-5\right)-\left(+7\right)-\left(-6\right)+\left(-3\right)$