$\left(2x^7\right)^3\:\left(-x^9\:z^7\right)^2$

$20^3+60x^2-80$

$\int\frac{-2x+4}{3x^2-5x-2}dx$

$\left(3.25\right)-\left(-11.75\right)-\left(1.25\right)-\left(4.25\right)-\left(0.25\right)-\left(-10.75\right)-\left(13.25\right)-\left(0.25\right)-\:\:\:\:\left(-8.75\right)-\left(16.25\right)-\left(-6.75\right)-\left(-18.75\right)-\left(20.25\right)-\left(5.25\right)-\left(10.25\right)-\left(-7.75\right)-\:\:\:\left(-1.75\right)-\left(-14.75\right)-\left(20.25\right)-\left(7.25\right)-\left(-3.75\right)-\left(6.25\right)-\left(-10.75\right)-\left(-12.75\right)$

$-12x^2-21x-58$

$6x^2-2x-3x^2$

$\frac{d}{dx}\left(lnz+z-xy=1\right)$