Solve x 2 + 8x + 7 = 0 {-1, -7} {1, 7} {}

Question

Solve x 2 + 8x + 7 = 0 {-1, -7} {1, 7} {}

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Liliana 1 week 2021-09-13T12:02:06+00:00 2 Answers 0

Answers ( )

  1. Answer:

    Step-by-step explanation:

    The y value has to be 0, so neither of those 2 answers look correct.

    factor the quadratic

    x^2 + 8x +7 = 0

    (x + 7)(x + 1) = 0

    x + 7 = 0

    x = – 7

    ========

    x + 1 = 0

    x = – 1

    ========

    The two points that solve this equation are

    (-1,0)

    (-7,0)

  2. Answer:

    The answer for the equation is {-1,-7}

    Step-by-step explanation:

    This is found by using the quadratic equation.

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