PLEASE. HELP. SERIOUSLY PLEASE. jess solved the quadratic equation x^2+2x = 8 but made a mistake. her work is shown belo

Question

PLEASE. HELP. SERIOUSLY PLEASE.

jess solved the quadratic equation x^2+2x = 8 but made a mistake. her work is shown below. identify the step(s) in which a mistake was made

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Khánh Gia 3 years 2021-08-16T04:20:54+00:00 1 Answers 27 views 0

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  1. haidang
    0
    2021-08-16T04:21:59+00:00
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    Answer:

    x value would be 2

    Step-by-step explanation:

    The computation is shown below:

    Given that

    x^2 + 2x = 8

    x^2 + 2x – 8 = 0

    x^2 + 4x – 2x – 8 = 0

    x(x + 4) – 2(x + 4) = 0

    (x – 2) (x  + 4) = 0

    So, x value would be 2

    x – 2 = 0

    x = 2

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