SOLUTION: The product of two consecutive odd whole numbers is 143. Find the numbers.
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Question 669652: The product of two consecutive odd whole numbers is 143. Find the numbers.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The product of two consecutive odd whole numbers is 143. Find the numbers.
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1st: 2x-1
2nd: 2x+1
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Equation:
(2x-1)(2x+1) = 143
4x^2 -1 = 143
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4x^2 - 144 = 0
Factor:
(2x-12)(2x+12) = 0
x = 6 or x = -6
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If x = 6:
1st: 2x-1 = 11
2nd: 2x+1 = 13
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If x = -6:
1st: 2x-1 = -13
2nd: 2x+1 = -11
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Cheers,
Stan H.
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