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Mathematics 12 Online
OpenStudy (anonymous):

Sam decides to build a square garden. If the area of the garden is 4x2 + 28x + 49 square feet, what is the length of one side of the garden? A. (2x + 7) feet B. (7x + 2) feet C . (2x − 7) feet D. (7x − 2) feet

OpenStudy (anonymous):

A

OpenStudy (anonymous):

A

Directrix (directrix):

Take the quantity 4x2 + 28x + 49 and factor it (2x + 7)^2. Because the region is a square all sides are the same. And, area of a square is (side times side). The side is (2x + 7) which is ---> Option A

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