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27 April, 01:31

If (x - 3) ^2 = 5, then

A) x = - 3±√5

B) x = 3±√5

C) x = 5±√3

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Answers (1)
  1. 27 April, 01:34
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    (x - 3) ^2 = 5 ... take sqrt of both sides, eliminating the ^2

    x - 3 = (+-) sqrt 5 ... add 3 to both sides

    x = 3 (+-) sqrt 5 < = = = answer B
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