Question 170091
The lengths of two sides of a square are extended 5 inch. The area of the resulting square 64 square inch. Find the length of a side of the orginal square?
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Let original side be "x".
Original area = x^2.
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New side is x+5.
New area = (x+5)^2
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EQUATION:
(x+5)^2 = 64
x+5 = 8
x = 3 inches (original side length)
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Cheers,
Stan H.