Question 870524
L=-5+2w and wL=75;
{{{w(-5+2w)=75}}}
{{{2w^2-5w=75}}}
{{{2w^2-5w-75=0}}}
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{{{D=25-4*2*(-75)=25+4*150=625=25^2}}}
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{{{w=(5-sqrt(25^2))/4=(5-25)/4}}}  this solution does not work.
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{{{w=(5+25)/4=29/4}}}


<b>w=29/4</b> and then L=29/2-5=29/2-10/2=<b>19/2=L</b>.