I'm stuck on this one:

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- Sep 20th 2011, 08:46 PMsparkyCompute the Limit: Question 2
I'm stuck on this one:

- Sep 20th 2011, 09:12 PMTKHunnyRe: Compute the Limit: Question 2
Not good, Sparky. Please factor numerator and denominator again. Both are incorrect.

Not good, Sparky. Why did you substitute the limit value into a function you do NOT know is continuous? Never do that.

Do a little less manipulating little symbols and a lot more thinking. - Sep 24th 2011, 06:14 PMsparkyRe: Compute the Limit: Question 2
Ok, here is another attempt at the following question:

Where did I go wrong with my factorization? - Sep 24th 2011, 06:38 PMDevenoRe: Compute the Limit: Question 2
so far, so good. you won't be able to factor further, but you CAN factor . try that, and see if something cancels...

- Sep 24th 2011, 07:02 PMsparkyRe: Compute the Limit: Question 2
- Sep 24th 2011, 07:18 PMTKHunnyRe: Compute the Limit: Question 2
It is a beautiful thing.

- Sep 25th 2011, 07:29 AMDevenoRe: Compute the Limit: Question 2
- Sep 25th 2011, 05:01 PMsparkyRe: Compute the Limit: Question 2
- Sep 25th 2011, 11:04 PMSironRe: Compute the Limit: Question 2
In this step you're substituting wrong, you wrote:

It has to be:

Do you notice your mistake? Offcourse like Deveno said it's lucky that (1+1)(1+1)=1+1+1+1, but in other cases ...