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23 October, 19:09

What are the x-intercepts of the quadratic function? F (x) = x^2-3x-10

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  1. 23 October, 19:22
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    Hello:

    hello:

    f (x) = x²-3x-10

    the x-intercepts solutions f (x) = 0

    Δ = b²-4ac a = 1 b = - 3 c = - 10

    Δ = (-3) ²-4 (1) (-10) = 49 = 7²

    x1 = (3-7) / 2 x2 = (3+7) / 2

    the x-intercepts : 5, - 2
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