could you please explain how to solve : x2 - 9 = 0

Asked by nivi95 | 9th Jun, 2009, 02:23: PM

Expert Answer:

x2 - 9 = 0

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

x = 3, -3

Answered by  | 9th Jun, 2009, 02:34: PM

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