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27 March, 15:56

What value is added to both sides of the equation x2 - 4x = - 2 in order to solve by completing the square?

A) 4

B) 2

C) - 2

D) - 4

+2
Answers (1)
  1. 27 March, 19:27
    0
    x^2 - 4x = - 2

    x^2 - 4x + 4 = - 2 + 4

    (x - 2) ^2 = 2

    A) 4
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