SOLUTION: x2 -2x -13 =0 I need a quadratic formula for this and how to work the problem

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Question 530292: x2 -2x -13 =0 I need a quadratic formula for this and how to work the problem
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 -2x -13 = 0
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x = [2 +- sqrt(4 - 4*1*-13)]/2
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x = [2 +- sqrt(4+52)]/2
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x = [2 +- sqrt(56)]/2
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x = [2 +- 2sqrt(14)]/2
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x = 1 +- sqrt(14)
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Cheers,
Stan H.
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