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November 28, 2014

November 28, 2014

Posted by **Rose** on Saturday, March 13, 2010 at 7:36pm.

f(x)=x^3+8x^2-18x+20; x-10

I have a doubt in my answer, i determined that x-10 is not a factor... am i right? please verify as my exam is tomorrow night at college. thank you for your time and hard work:)

- Using the factor Theorem -
**MathMate**, Saturday, March 13, 2010 at 7:52pmIt can be shown that x-10 is not a factor of x^3+8x^2-18x+20. So your are correct.

If you wish, you could try (x+10) and show that it is a factor of x^3+8x^2-18x+20.

- Using the factor Theorem -
**Rose**, Saturday, March 13, 2010 at 7:58pmthank you so much dear mate, yes i took your advise and indeed i got it as a factor:) thank you.

- Using the factor Theorem -
**MathMate**, Saturday, March 13, 2010 at 8:20pmYou're welcome!

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