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17 December, 00:17

How many solutions does this quadratic equation have? y=x^2-8x-20

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Answers (1)
  1. 17 December, 00:45
    0
    Answer: y=x+2 or x-10

    Step-by-step explanation:

    Y=x2-8x-20

    Quadratic equation

    Variables of - 20 that will give - 8 are

    -10 &+2

    Substitute into the equation

    Y=x2-10x+2x-20

    Y=x (x-10) + 2 (x-10)

    Y = (x+2) (x-10)

    The two equations are

    Y=x+2 or

    Y=x-10
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