Question 1028556
what does ,200=0 mean?
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I think the equation is
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x^2 +60x -7200 = 0
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we need to determine the prime factors of 7200
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7200 = 2^5 * 3^2 * 5^2
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using the prime factors, we want to construct two factors of 7200 that differ by 60
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60 = 2^2 * 3 * 5
120 = 2^3 * 3 * 5
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(x+120) * (x-60) = x^2 +60x -7200 = 0
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(x+120) * (x-60) = 0
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x is -120 or 60
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measurements are positive, so we will use 60
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the length and width of the box are both 60 inches
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