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10 September, 20:28

Which of the following statements follows from (x - 3) ^2 = 5?

x^2 + 9 = 5

x - 3 = ±

x - 3 = ±25

+5
Answers (2)
  1. 10 September, 22:42
    0
    Expand the equation by multiplying it with itself: (x-3) * (x-3)

    x^2 - 3x - 3x + 9 = 5

    x^2 - 6x + 9 = 5

    x^2 - 6x + 4 = 0

    Since this is not part of the choices, try a different approach. Take the square root of both sides:

    x - 3 = square root of 5

    x - 3 = + / - 2.24

    I guess this is the middle term which is incomplete. The first and last choices are not equivalent to the given equation.
  2. 11 September, 00:20
    0
    X^2-6x+9=5

    (x-3) (x-3) = 5

    (x-3) = 5

    x
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