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March 5, 2015

March 5, 2015

Posted by **John** on Tuesday, May 10, 2011 at 9:52pm.

- MATH -
**Reiny**, Tuesday, May 10, 2011 at 10:18pmUsually we factor using the set of rational numbers.

Can you think of two numbers which multiply to get 7 and add to get 1 ?

I can't think of any either, so...

your expression does not factor.

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