vaiables

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Source: — Data Sufficiency |

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by ildude02 » Thu Jun 19, 2008 1:18 pm
I don't see the complete question and seems like the html is enabled. But in any case, seems like the equation derived from the question is asking if (x-3)^2 > 0. Any value of x will be greater then 0 since it's a square , except when x = 3. So we can answer the choice based on this conclusion.