$64x^10-48xy-9y^2$

$\int\frac{6x-9}{\left(x+5\right)\left(x-2\right)}dx$

$\frac{d}{dx}x^6sin9x$

$4x^2-12x-17=0$

$\lim_{x\to1}\left(\frac{x^3-x^2-x-1}{x^2-x}\right)$

$\left(xy+x\right)dx=\left(x^2\left(1+y^2\right)+y^2+1\right)dy$

$\left|\frac{-5x^{-2}y}{x}\right|^3$