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9 April, 20:04

Real solution (s).

The equation x2-9 = 0 has

+2
Answers (2)
  1. 9 April, 22:19
    0
    x=4.5

    2x-9=0

    2x=9

    x=4.5
  2. 9 April, 23:49
    0
    2 real solutions
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