Question 270911
L=W+3 and LW=28
then
{{{(W+3)W=28}}}
{{{(W^2+3W)=28}}}
{{{W^2+3W-28=0}}} find 2 #'s that multiply together to get -28 and add together to get +3
{{{(W+7)(W-4)}}}
W=-7,4 since the area cant be negative, {{{W=4}}}
L=W+3
{{{L=4+3}}}
{{{L=7}}}