anonymous
  • anonymous
someone take a look at this please lim_{x rightarrow -1} (x^2 - 7x + 8/ x - 5)^2
Mathematics
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
\[\lim_{x \rightarrow -1} (x^2 - 7x + 8/ x - 5)^2\]
myininaya
  • myininaya
plug in -1 since the function is continuous at -1
anonymous
  • anonymous
i tried that and i dont know what im doing wrong but my software wont accept the result

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myininaya
  • myininaya
\[\frac{(-1)^2-7(-1)+8}{(-1-5)^2}\] is that right?
myininaya
  • myininaya
or is the square on the whole thing?
anonymous
  • anonymous
what happens to the exponent outside the paranthesis
myininaya
  • myininaya
could you answer my question first? is the square on the whole thing or just the bottom?
anonymous
  • anonymous
the whole thing
myininaya
  • myininaya
\[(\frac{(-1)^2-7(-1)+8}{(-1-5)})^2\]
myininaya
  • myininaya
so perform what is inside first
myininaya
  • myininaya
\[(\frac{1+7+8}{-6})^2=(\frac{16}{-6})^2=(\frac{-8}{3})^2=\frac{64}{9}\]
anonymous
  • anonymous
i see. thank you very much. i have alot of similar problems like this. would you be willing to work with me please?
myininaya
  • myininaya
just post the questions as a new thread and i will work a little longer tonight but not much more
anonymous
  • anonymous
ok thanks

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