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31 March, 09:08

7x^2-7=0 solve each equation

by factoring

+5
Answers (2)
  1. 31 March, 11:35
    0
    (1,0) (-1,0)

    or if you prefer this format: x = 1,-1
  2. 31 March, 11:44
    0
    7x^2 - 7 = 0

    7 (x^2 - 1) = 0

    7 (x + 1) (x - 1) = 0

    x = 1; x = - 1
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