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6 May, 12:00

Given the equation 2 Square root of x minus 5 = 2, solve for x and identify if it is an extraneous solution.

A.) x = 6, solution is not extraneous

B.) x = 6, solution is extraneous

C.) x = 11, solution is not extraneous

D.) x = 11, solution is extraneous

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Answers (1)
  1. 6 May, 12:15
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    Given: 2 √ (x - 5) = 2

    Taking the square of both sides:

    [ 2√ (x - 5) = 2]^2

    4 (x - 5) = 4

    x - 5 = 1

    x = 6

    Among the choices, the correct answer is A. x = 6, solution is not extraneous.
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