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April 18, 2014

Posted by **CheezyReezy** on Wednesday, June 1, 2011 at 10:01pm.

f(x) = x^4 - 7x^3 -3x^2 + 19x + 14

Help

- Math - potential zero -
**Reiny**, Wednesday, June 1, 2011 at 11:14pmtrying a few factors of 14, I found

f(-1) = 0 and f(2) = 0

so after 2 consecutive synthetic divisions, that left me with

(x+1)(x-2)((x^2 - 6x - 7)

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

so we have a double zero at x=-1

and two more zeros at 2 and 7

- Check your previous post before re-posting -
**Reiny**, Wednesday, June 1, 2011 at 11:25pmI just wasted my valuable time doing the above question before noticing that your same question had already been answered.

Do not repost the same question without checking if it has been answered.

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