$8\left(d\:+\:5\right)\:=\:12d\:-\:8$

$\frac{y}{2}+9=6$

$f\left(x\right)=3x^2+7xg\left(x\right)=2^2-x-1$

$\left(-5\right)-\left(+13\right)+\left(-16\right)-\left(-8\right)+\left(+7\right)$

$-50+\left(-214\right)+216+\left(-93\right)$

$2\left(5\right)^2+2\left(5\right)\left(1\right)+\left(2\right)^2$

$\sqrt[3]{\frac{x^3+2744}{x^2+196}}$