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March 6, 2015

March 6, 2015

Posted by **Anonymous** on Tuesday, February 8, 2011 at 11:03am.

f(x) = x^3 -2x^2+x -1

- Calculus -
**Reiny**, Tuesday, February 8, 2011 at 11:36amlook at your expression.

Is there any value of x which when substituted does not give you a real number?

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