Solve x2 − 24x = −80 by completing the square. What is the solution set of the equation? {2, 40} {4, 20}

Question

Solve x2 − 24x = −80 by completing the square.

What is the solution set of the equation?

{2, 40}
{4, 20}
{5, 16}
{8, 10}

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Isabella 6 days 2021-11-25T19:04:23+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-11-25T19:05:31+00:00

    Answer:

    {4, 20}

    Step-by-step explanation:

    x2 − 24x = −80

    divide -24 by 2  and square result   get 144

    x^2 – 24x  + 144 =  -80 + 144

    (x – 12)^2  =  64

    x – 12 = root (64)

    x = 12 + 8  or  x = 12 – 8

    x = 20 or 4

    0
    2021-11-25T19:05:50+00:00

    Answer:

    {4.20}

    Step-by-step explanation:

    b on edg

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45:7+7-4:2-5:5*4+35:2 =? ( )