math
posted by Lisa .
the width of a rectangular garden is 2 m less than its length. Determine the dimensions of the garden if the area is 36 m2.
thanks!

w(w+2) = 36
w^2 + 2w = 36
w^2+2w+1 = 36+1
(w+1)^2 = 37
w = 1±√37
we want a positive width, so w = 1+√37 = 5.09
check: 5.09*7.09 = 36.1
close enough 
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