$\frac{\left(6x^4+2x^3+4x^2+3x+8\right)}{\left(-2+8x\right)}$

$x^2+45x+45$

$-2\:+\:-1\:+\:-3\:+\:+1\:+\:+3\:$

$\int\frac{7}{x^2\left(x-2\right)}dx$

$2\left(-1\right)^{2}-3\left(-1\right)+4$

$\int\frac{x^3+3}{\left(x^3+4x^2+4x\right)}dx$

$\left(-4m^2\:n^3\:\right)\left(-5mn^4\:p\right)$