Hi



the area of a rectangle is 36 ft^2 the perimeter is 26' 

  2*L + 2*W = 26'  OR L = 13-W

  W(13-W) = 36FT^2

  W^2-13W + 36 = 0

FACTORING

 (W-9)(W-4) = 0  

 (W-9)=0

 (W-4)= 0  W=4' and L=9' 

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