algebra

x^2-9=0

  1. 1
  2. 0
  3. 12
asked by aci
  1. x^2 = 9
    etc
    remember, you will get 2 answers

    or

    (x-3)(x+3) = 0
    then .....

    1. 0
    2. 0
    posted by Reiny

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