$\left(-12\right)\left(-8\right)\left(-1\right)$

$\left(a+b\right)^2\:+2\left(a+b\right)\left(c+d\right)\:+\:\left(c+d\right)^2$

$418-\left(-56\right)$

$\int6xe^{\frac{-x}{2}}dx$

$\int\frac{x^2-3}{x^2\left(x-1\right)}dx$

$894.56+99.99+49.99+5.905+34.5$

$24\sqrt{x^2}-y^2+4$