SOLUTION: Find the roots of the quadratic equations by the method of completing the square. Express the roots, if they are not rational, in simplest radical form.

Algebra ->  Algebra  -> Quadratic Equations and Parabolas -> SOLUTION: Find the roots of the quadratic equations by the method of completing the square. Express the roots, if they are not rational, in simplest radical form.       Log On

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Question 41108: Find the roots of the quadratic equations by the method of completing the square. Express the roots, if they are not rational, in simplest radical form.

Answer by stanbon(57246) About Me  (Show Source):
You can put this solution on YOUR website!
x^2 - 6x - 4 = 0
x^2-6x+9 =4+9
(x-3)^2 = 13
x-3=+-sqrt13
x=3+-sqrt13
x=3+sqrt13 or x=3-sqrt13
Cheers,
Stan H.