Question

How do you find `\lim _ { x \rightarrow 3} \frac { x ^ { 3} - 27} { x + 5}`?

Answer 1

See below.

Explanation:

You can solve this by just plugging 3 into `(x^3-27)/(x+5)`

`((3)^3-27)/((3)+5)=0/8=0`

`:.`

`lim_(x->3)((x^3-27)/(x+5))=0`