Question 829732: Solve x^2 - 5x - 1 = 0 using the Quadratic Formula. Find the exact solutions. Then approximate any radical solutions. Round to the nearest hundredth.
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! ---
x^2 - 5x - 1 = 0
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the above quadratic equation is in standard form, with a=1, b=-5, and c=-1
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 -5 -1
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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the quadratic has two real roots at:
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discriminant = 29
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root 1:
x = ( 5 + sqrt( 29 ) ) / 2
x = 5.19
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root 2:
x = ( 5 - sqrt( 29 ) ) / 2
x = -0.19
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