Tuesday

October 21, 2014

October 21, 2014

Posted by **Mary** on Monday, April 1, 2013 at 9:39pm.

- Algebra -
**Reiny**, Monday, April 1, 2013 at 9:54pmIf an expression cannot be factored over the rational numbers, it is often considered "prime"

since x^2 - 2x + 4 cannot be factored with rational factors, you are correct.

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