appleduardo Group Title whats the limit of the following function? one year ago one year ago

1. appleduardo Group Title

$\frac{ 4x ^{2} - 1 }{ 8x ^{3}+1 }$

2. appleduardo Group Title

x--> -1/2

3. ksaimouli Group Title

|dw:1349996340056:dw|

4. appleduardo Group Title

mm but ill get 0/0 so i dont know what to do next :/

5. ksaimouli Group Title

use algebra

6. ksaimouli Group Title

what did ur teacher say

7. appleduardo Group Title

that i have to use algebra :P, but ive been trying to solve it, but i cant so far

8. ksaimouli Group Title

me too

9. ksaimouli Group Title

hmm

10. ksaimouli Group Title

|dw:1349997419225:dw|

11. ksaimouli Group Title

did u get this one

12. zepdrix Group Title

|dw:1349998768027:dw| Can you solve it from here maybe? :) It had a couple tricks you had to pull off in order to pull out the right factor.