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8 March, 22:26

Use factoring by difference of squares to solve the equation, x^2 - 81 = 0.

A. x = 9 or x = - 11

B. + / - 9

C. + / -

D. + / -

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Answers (1)
  1. 8 March, 22:53
    0
    The answer is B + / - 9!
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