SOLUTION: Hello Tutors, Here is a question that is making me bang my head as the answr choices don't match my answer. Please explain to me. Thanks The area of a square region garden

Question 32573: Hello Tutors,
Here is a question that is making me bang my head as the answr choices don't match my answer. Please explain to me. Thanks
The area of a square region garden is A square feet and the perimeter is P feet. If A = 2P + 9, what is the perimeter of the garden, in feet?

Thanks
Tolly
Answer by mukhopadhyay(490) (Show Source): You can put this solution on YOUR website!
Let the side of the square region garden is x ft
Area = x^2
Perimeter = 4x feet
Per question, x^2 = 2(4x) + 9
=> x^2-8x-9 = 0
=> (x-9)(x+1) = 0
=> x=9 (because x cannot be -ve)
The perimeter os the garden is 36 feet.
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