$\frac{\left(x^5+3x^4-6x^3+2x^2-9x+6\right)}{\left(x^2-x+2\right)}$

$\left(a^2-b^3\right)\left(a^2-b^2\right)$

$\int\left(10cos^5\left(2\pi\right)sen\left(2\pi\right)\right)d\pi$

$\frac{4x^3-7x^2-21x+9}{4x-3}$

$xy^2+xz^2+xw$

$\lim_{x\to0}\left(\frac{2ln\left(x+1\right)+2x}{4sinx-2x^3}\right)$

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