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14 February, 17:45

Which equation is true?

9x2 - 25 = (3x - 5) (3x - 5)

098 - 25 = (3x - 5) (3x + 5)

9x2 - 25 = - (3x + 5) (3x + 5)

9x2 - 25 = - - (3x + 5) (3x - 5)

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Answers (2)
  1. 14 February, 19:41
    0
    9x^2-25 = (3x-5) (3x+5)

    Step-by-step explanation:

    9x^2-25 = (3x) ^2 - 5^2 = (3x-5) (3x+5)

    A^2 - B^2 = (A-B) (A+B)
  2. 14 February, 21:09
    0
    9x2-25 = (3x-5) (3x+5)
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