SOLUTION: A square has an area of 4x^2+12x+9. Find the length of a side. Make a sketch of the square.

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Question 477947: A square has an area of 4x^2+12x+9. Find the
length of a side. Make a sketch of the square.
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Area = 4x%5E2+%2B+12x+%2B+9+=+%282x+%2B+3%29%5E2.
==> side of square is 2x+3.

(Some would argue that the length of the side would be |2x+3|, but this would be erroneous, since 2x + 3 has to be positive, and so sqrt%28%282x%2B3%29%5E2%29+=+abs%282x%2B3%29+=+2x%2B3.)