$\left(-23\right)\cdot\left(-12\right)\cdot4\cdot10\cdot7\cdot\left(-1\right)\cdot\left(-9\right)$

$\frac{y^2}{y-1}dy-\frac{x^2}{x+1}dx=0$

$\int\frac{3x^2-6}{\sqrt{x^3-6x}}dx$

$4x^2-1\ge0$

$\sqrt[5]{x^{12}}y^9z^5w^3$

$20+90+519$

$\frac{2x^{-1}y^{-1}}{2xy^2\cdot4x^3y^{-1}}$