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OpenStudy (anonymous):
Sarah wants to hang a painting in a gallery but the painting and frame must have an area of 75 square feet. The painting is 8 feet wide by 9 feet long. The frame must have an equal width of x on each side. Which quadratic equation represents the area of the painting and frame combined?
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jimthompson5910 (jim_thompson5910):
Draw 2 rectangles. One inside the other. |dw:1345417169414:dw|
jimthompson5910 (jim_thompson5910):
Now add the labels |dw:1345417207687:dw|
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