## marktj 2 years ago How do you synthetically divide (4x^3-7x^2-11x+50/(4x+5)?

1. marktj

2. darkprince14

first you need to extract the value of x on the denominator 4x + 5 = 0 4x = -5 x = -5/4

3. Nory

Now write it like long division, except eliminate the x's and just write the coefficcients like you write synthetic division.

4. marktj

Thanks!!

5. jaersyn

can you draw the set up real quick?

6. jaersyn

|dw:1350137391171:dw|

7. darkprince14

remember to follow the level of their degree...

8. jaersyn

is it like that?

9. darkprince14

@jaersyn yep..it's like that..

10. darkprince14

wait..you forgot to write their signs @jaersyn

11. jaersyn

oh snap! you're right

12. jaersyn

i'm not even op, just trynna learn lol

13. darkprince14

-5/4 | 4 -7 -11 50

14. jaersyn

then you drop the 4, do (-5/4)*4 and put that under -7 and subtract or add?

15. darkprince14

depends on the sign..if it is negative you subtract.. if positive, you add..

16. darkprince14

if both of them possess the same sign then you add them then copy the sign..

17. jaersyn

ohh so -7 - 5 = -12

18. darkprince14

yep..next step...

19. jaersyn

-5/4 * -12 = 15 so -11 + 15 = 4

20. darkprince14

you got it right...

21. jaersyn