How do you perform operations involving absolute values? I want to avoid squaring them, is there any way to work around that?
Suppose I want to solve $\frac{|x-120|\cdot|y-39|}{2}$, what should be the expressions equivalent?
EDIT: apologies, suppose I want to simplify the expression above?
Additionally, suppose $z(x,y)=\frac{|x-120|\cdot|y-39|}{2} +\frac{|x-23|\cdot|y-11|}{2}$ and I want to find the optimal values for $(x,y)$. How do I go about it?
$z(120,11) = 0+0 = 0,$ which is clearly a minimum.