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put this solution on YOUR website!a recatngular ro0m is 7ft longer than its wide.its area is 228ft squared.what is the width of the ro0m?
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Let w = width
then
w+7 = length
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Area of a rectangle = length * width
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228 = (w+7)w
228 = w^2 + 7w
0 = w^2 + 7w - 228
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Factoring, we get:
0 = (w-19)(w+12)
w = {19, -12}
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Since width can't be negative
w = 19 feet (width)
w+7 = 26 feet (length)
