math

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How do I set this up and solve?

You are planning a rectangular patio with length that is 7 ft less than 3 times its width. The area of the patio is 120 ft squared. What are the dimensions of the patio?

• math -

w(3w-7) = 120
3w^2 - 7w - 120 = 0
No rational solution.
x = (7+√1489)/6

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