## bearsams 3 years ago find all real zeros f(x)=2x^4+3x^3-6x^2-6x+4

1. bearsams

anyone there

2. zzr0ck3r

algebraically?

3. bearsams

no

4. bearsams

using synthetic division

5. zzr0ck3r

ahh word. Ill watch to learn:)

6. bearsams

you know how/

7. zzr0ck3r

well we know, all non real roots come in tandem. that's all I can help:)

8. bearsams

iopus?

9. lopus

|dw:1348011701036:dw| this is ruffinni

10. bearsams

thank you so much

11. bearsams

then i have to put it in a quadratic equation

12. lopus

|dw:1348012143081:dw|

13. bearsams

wow ok i understand thanks a bunch

14. lopus

you understand ruffinni? x=-2 x=1/2 x=... x=..

15. bearsams

ruffinni? never heard of it.. but i know how u got it now

16. lopus

ruffini is synthetic division you can finish this. lets go!

17. bearsams

ok hold on

18. bearsams

how is there 2 more x's

19. lopus

|dw:1348012608903:dw|

20. bearsams

so + or - square root of 2 is one x too and that leaves one more?

21. lopus

|dw:1348012735984:dw|

22. bearsams

so the x's are x= +square root of 2 x= -square root of 2 x= 1/2 x=-2

23. lopus

yes

24. bearsams

thank you so much