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October 6, 2015
Posted by **Alley** on Wednesday, March 27, 2013 at 12:23pm.

F(x)=7x^3-x^2+7x-1

- College algebra -
**Steve**, Wednesday, March 27, 2013 at 12:26pmby inspection,

f(x) = 7x^3+7x - x^2-1

= 7x(x^2+1) - (x^2+1)

= (7x-1)(x^2+1)

and so on