A rectangle's length is 4 more than twice its width. Its area is 240 square centimeters.
Complete the work to find the dimensions of the rectangle.
w (2w + 4) = 240
2w2 + 4w = 240
2w2 + 4w - 240 = 0
2 (w + 12) (w - 10) = 0
What is the width of the rectangle? What is the length of the rectangle?
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