## anonymous 3 years ago x(x²+9x+3)= -5(2x+1)

1. anonymous

|dw:1343190923944:dw|

2. NotTim

do you kno of synthetic division?

3. anonymous

yes but wont i need to find a factor of 5 that would make the equation equal zero ?

4. anonymous

oh nvm it's -1

5. NotTim

I think so?

6. anonymous

yup it is, thanks :)

7. NotTim

awesome. that all yo uneed? confrimation?

8. anonymous

yes but one more thing

9. anonymous

|dw:1343191358412:dw|

10. anonymous

zeros would be: (x+1) .. and idk which other ones :S

11. anonymous

@lgbasallote any thoughts ?

12. NotTim

for the other zeros, don't you have to solve for x^2+8x+5

13. anonymous

yes but i cant come up with a whole number value for

14. NotTim

do you need a whole number value?

15. anonymous

yes

16. anonymous

$x=-1$ $x=-4-\sqrt{11}$ $x=\sqrt{11}-4$

17. NotTim

18. NotTim

if we wanted answers, we'd use wolframalpha.com

19. anonymous

there are no ways of getting whole #s ?

20. NotTim

i never thought it neccessary. why oy uwant?

21. anonymous

check chapter 2 of this textbook http://finedrafts.com/files/Larson%20PreCal%208th/Larson%20Precal%20CH2.pdf I just finished pre-cal last week for summer course

22. anonymous

23. NotTim

yayy

24. anonymous

this is great ! :D what grade would this be btw ?

25. NotTim

26. NotTim

11 more like...

27. anonymous
28. anonymous

looks like the grade 12 advanced functions course material too thank you soooooo much !

29. NotTim

woOOooOO!

30. anonymous

yeah. check out chapters 1-4: linear, quadratic, polynomial and logarithmic functions. you will be able to tell the movements and shifts and of the functions in no time, how many turning points (global/local maximum and minimums), and their values. I use wolfram alpha instead of TI calculators for best FIT models, but not on the problem you posted. I uploaded the whole textbook by Larson et al. to share.

31. anonymous

thanks so much, my exam in in two days .. this will help A LOT !

32. anonymous

the link you gave me was just chapter 2 though, right ?

33. anonymous

yeah. but you can check out finedrafts.com/files and just look for Pre-Cal by Larson et al. the rest are physics and biology textbooks that I used.

34. anonymous

okay thanks again !