$\frac{d}{dx}x^2y^2-2=4y^2$

$\left(-9\right)\cdot\left(-5\right)\cdot\left(14\right)$

$\lim_{x\to\infty}\:\left(x+2\right)^3-\left(x-2\right)^3\:over\:x^2$

$\left|-5\right|+\left(-7\right)-\left(-4\right)$

$17x-23y=-19$

$\left(\sin\left(x\right)-1\right)\left(\sin\left(x\right)+1\right)=sin^2x-1$

$-8v^0$