$\left(xyz\right)\cdot\left(xyz\right)$

$\frac{d}{dx}\left(ln\left(8x\right)\right)^{ln\left(6x\right)}$

$\frac{d}{dx}x^4+2x^2y^2+y^4=9x^2-9y^2$

$x\left(a-b\right)+y\left(a-b\right)$

$\int\frac{x}{\sqrt{x^27}}dx$

$\int\cos\left(z\right)^4dz$

$9 ( 5 v - 3 ) + 412 u + 5$