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The length of a rectangle is three more than twice its width. The area is 65 m^2. What is its width?
1 answer
w (2w+3) = 65
2 w^2 + 3 w -65 = 0
w = 20/4 or -26/4
so
w = 5
check
5 (10+3) = 65 yes
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