Question

What is the limit of `(x^2-1)/(x-1)` as `x` approaches 1?

Answer 1

I tried this:

Explanation:

I would try manipulating it:

`lim_(x->1)(x^2-1)/(x-1)=lim_(x->1)[cancel((x-1))(x+1)]/cancel((x-1))=2`

Answer 2

`2`

Explanation:

`lim_(xto1)(x^2-1)/(x-1)`

`=lim_(xto1)(cancel((x-1))(x+1))/cancel((x-1))=1+1=2`