SOLUTION: Sting has a secret number. Five plus twice the number equals the square of the number.
Algebra.Com
Question 913114: Sting has a secret number. Five plus twice the number equals the square of the number.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Sting has a secret number. Five plus twice the number equals the square of the number.
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Equation:
5 + 2x = x^2
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x^2 - 2x - 5 = 0
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x = [2 +- sqrt(4-4*-5)]/2
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x = [2+- 2sqrt(6)]/2
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x = 1 +- sqrt(6)
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Cheers,
Stan H.
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