Find all the real zeros of the polynomial. Use the quadratic formula if necessary.

P(x) = x^4 - 7x^3 + 14x^2 - 3x - 9

Question

Find all the real zeros of the polynomial. Use the quadratic formula if necessary. 

P(x) = x^4 - 7x^3 + 14x^2 - 3x - 9

asnaseer · Answer

Have you heard of the rational zero test?

asnaseer · Answer

netlopes1 · Answer

You can test -3 and it will be a double rational zero. So, use Briot-Ruffini Method.Did you tried this?

netlopes1 · Answer

Excuse me, the corret is +3. Sorry

anonymous · Answer

I need someone to do it so I can their steps. I know how to do it….. but obviously took a wrong turn somewhere.

asnaseer · Answer

It would be better for you to list the steps you took - then we can try and spot where you made that wrong turn.

anonymous · Answer

I dont have time for typing all of that right now.

netlopes1 · Answer

Look this attach file. Help?

netlopes1 · Answer

Now, do you know Briot-Ruffini method?

anonymous · Answer

No

anonymous · Answer

3(-1) is not -4 in the divison