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Answer:
(x + 3)(x + 2) = 9
x^2 + 5x + 6 = 9
x^2 + 5x = 3
Step-by-step explanation:
length * width = area
(x + 3)(x + 2) = 9
Expand
x^2 + 5x + 6 = 9
Subtract 6 from both sides
x^2 + 5x = 3