Example 1. Find the zeros of the quadratic polynomial x2 – 2x – 8 and verify the relationship between the zeros and the coefficien

Question

Example 1. Find the zeros of the quadratic
polynomial x2 – 2x – 8 and verify the relationship
between the zeros and the coefficients.​

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Abigail 2 weeks 2021-09-07T03:26:29+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-09-07T03:28:01+00:00

    Answer:

    4, -2

    Step-by-step explanation:

    You can do this using the quadratic formula too but I’m going to use the middle term splitting method.

    x^2 – 2x – 8

    x^2 – 4x + 2x -8

    x(x – 4) + 2(x – 4)

    (x + 2)(x – 4)

    You can see here that (-2) + 4 = (- b/a) = 2

    Also (-2)(4) = (c/a) = -8

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