# What are the discontinuities of #f(x) = (x^4 - 1)/(x-1)#?

##### 1 Answer

May 26, 2015

The only real discontinuity is when the denominator

But I think you call that a hole. The value of

You can rewrite the function:

and cancel out the **only if**

graph{(x^4-1)/(x-1) [-10, 10, -5, 5]}