$8x^2y\:-\:\left(-3x^2y^2\right)$

$-8+\left(-2\right)-\left(-10\right)-2+5$

$6xydx+4y+9dy=0$

$\sqrt{26+28}$

$14-12+14+1-9-1$

$lny=ln\left[\left(x^5+2\right)^2\left(x^3+4\right)^4\right]$

$\left(z-0.76\right)\left(z-0.23\right)+\left(z-0.76\right)\left(z+0.23\right)$