Asked by Almondjoy
                Tracy has forgotten how to complete the square. Using the following problem show her how to complete the square: x^2 + 4x - 2 = 0
How do I do this?
            
        How do I do this?
Answers
                    Answered by
            oobleck
            
    x^2 + 4x - 2 = 0
x^2 + 4x + 4 - 2 = 4
x^2 + 4x + 4 = 6
(x+2)^2 = 6
x+2 = ±√6
x = -2±√6
    
x^2 + 4x + 4 - 2 = 4
x^2 + 4x + 4 = 6
(x+2)^2 = 6
x+2 = ±√6
x = -2±√6
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