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6 January, 01:01

Find the equation for the quadratic function whose x-intercepts are - 1 and 3with the leading coefficient is 2

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  1. 6 January, 02:30
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    y = 2x² + 8x + 6

    Step-by-step explanation:

    given x = - 1 and x = - 3 are x - intercepts then

    (x + 1) and (x + 3) are factors and

    y = a (x + 1) (x + 3)

    given a = 2, then

    y = 2 (x² + 4x + 3)

    = 2x² + 8x + 6
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