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posted by Robert on Friday, November 16, 2012 at 3:04pm.
Solve the quadratic equation by completing the square. (-x^2 + 6x + 10 = 0)
-x^2 + 6x + 10 = 0 -(x^2 - 6x) + 10 = 0 -(x^2 - 6x + 9) + 10 + 9 = 0 -(x-3)^2 + 19 = 0 (x-3)^2 = 19 x-3 = ±√19 x = 3±√19
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