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Answer:
Width = 6 ft
Length = 9 ft
Step-by-step explanation:
Width =w
Length = 2w - 3
Area = 54 sq. ft
length *width = 54
(2w -3) *w = 54
2w² - 3w = 54
2w² - 3w - 54= 0
P = -108
Sum = -3
Factors = -12,9 {-12 + 9 = -3 & (-12)*9 = -108}
2w² - 12w + 9w -54 = 0
2w(w - 6) + 9(w- 6)=0
(w-6)(2w + 9) = 0
Ignore (2w + 9) as measure wont be negative
w -6 = 0
w = 6 ft
length = 2*6 - 3 = 12-3 = 9 ft