## anonymous 5 years ago someone take a look at this please lim_{x rightarrow -1} (x^2 - 7x + 8/ x - 5)^2

1. anonymous

$\lim_{x \rightarrow -1} (x^2 - 7x + 8/ x - 5)^2$

2. myininaya

plug in -1 since the function is continuous at -1

3. anonymous

i tried that and i dont know what im doing wrong but my software wont accept the result

4. myininaya

$\frac{(-1)^2-7(-1)+8}{(-1-5)^2}$ is that right?

5. myininaya

or is the square on the whole thing?

6. anonymous

what happens to the exponent outside the paranthesis

7. myininaya

could you answer my question first? is the square on the whole thing or just the bottom?

8. anonymous

the whole thing

9. myininaya

$(\frac{(-1)^2-7(-1)+8}{(-1-5)})^2$

10. myininaya

so perform what is inside first

11. myininaya

$(\frac{1+7+8}{-6})^2=(\frac{16}{-6})^2=(\frac{-8}{3})^2=\frac{64}{9}$

12. anonymous

i see. thank you very much. i have alot of similar problems like this. would you be willing to work with me please?

13. myininaya

just post the questions as a new thread and i will work a little longer tonight but not much more

14. anonymous

ok thanks