# How do you find all the values that make the expression undefined: #(3x^2 - 3)/(6x - 6)#?

##### 1 Answer

May 27, 2015

For this expression to be undefined, your denominator cannot be zero, as it's an indetermination when you have something divided by zero.

Thus, this expression becomes undefined when

In this case, by the way, we'd have an interesting topic in calculus:

So, your answer: this function becomes undefined only when

Besides, when