Question 798074: The product of a number decreased by 4 and increased by 6 is 39. Find all numbers satisfying this condition. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The product of a number decreased by 4 and increased by 6 is 39. Find all numbers satisfying this condition.
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Equation:
(x-4)(x+6) = 39
x^2 + 2x -24 = 39
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x^2 + 2x -63 = 0
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Factor:
(x+9)(x-7) = 0
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x = -9 or x = 7
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Cheers,
Stan H.
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