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4 March, 00:23

Find the solution of 3 sqrt x+5=-9, and determine if it is an extraneous solution.

O x = 4; not extraneous

O x = 4; extraneous

O x = 0; extraneous

O x = 0; not extraneous

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Answers (1)
  1. 4 March, 02:30
    0
    x=4 extraneous

    Step-by-step explanation:

    3 sqrt x+5=-9 (divide both sides by 3)

    sqrt x+5 = -3 (square both sides)

    x+5 = 9 (subtract 5 to both sides)

    x=4

    Extraneous because when you plug it back in, you get 9 = - 9
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