Question 880718
L=2w-3 and wL=77.


{{{w(2w-3)-77=0}}}
{{{2w^2-3w-77=0}}}
{{{w=(3+- sqrt(9+4*2*77))/4}}}, only the positive square root meaningful.
{{{w=(3+sqrt(625))/4}}}
{{{w=(3+25)/4}}}
{{{highlight(w=7)}}}
-
{{{L=2*7-3}}}
{{{highlight(L=11)}}}