$x^3y^5\cdot3x^{-5}y^2\cdot4yx^{-2}$

$\left(x-5\right)^5\frac{dy}{dx}+6\left(x-5\right)^4y=x+5$

$\frac{14a^7}{2a^2}$

$1-\:-1+12$

$^{\left(10x^5-21x^4+26x^3-11x^2+5x\:-1\right)\::\:\left(\:2x\:-1\right)}$

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

$\left(\frac{y}{2}+x\right)\left(x-\frac{y}{2}\right)$