Question 1074414
x and y dimensions


{{{system(x=3y-2,xy=21)}}}


{{{(3y-2)*y=21}}}

{{{3y^2-2y-21=0}}}

{{{y=(2+sqrt(4+4*3*21))/(2*3)}}}

{{{y=(2+2sqrt(64))(2*3)}}}

{{{y=(1+8)/3}}}

{{{y=3}}}

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{{{x=7}}}


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Length is 7 feet
Width is 3 feet