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2 August, 02:36

What is the vertex of this quadratic function? f (x) = 2x2 + 4x - 5

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  1. 2 August, 05:41
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    V ( - b / 2a; (4ac - b^2) / 4a);

    a = 2; b = 4; c = - 5;

    V ( - 4 / 4; - 56 / 8);

    finally, V ( - 1; - 7);
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