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A quadratic of the form $-2x^2 + bx + c$ has roots of $x = 3 + \sqrt{5}$ and $x = 3 - \sqrt{5}.$ The graph of $y = -2x^2 + bx + c$ is a parabola. Find the vertex of this parabola.

Feb 11, 2020

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https://web2.0calc.com/questions/urgently-need-help-within-two-days

Feb 11, 2020