Question

Select the exclusion that fits best with this problem.

Answer 1

Answer:

  see below

Step-by-step explanation:

There are no variables x or y or z in the given expression, so all but the answer shown below are irrelevant.

The denominator factors as ...

  ab³(a² +ab +b²)

so the restrictions are that these factors cannot be zero. The cases listed in the answer choice shown are the cases that are not allowed.