SOLUTION: Find all the numbers for which the rational expression is undefined: q^3-8a/q^2-64

Question 157347: Find all the numbers for which the rational expression is undefined:
q^3-8a/q^2-64
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Remember, division by zero is NOT defined. So any value of "q" that makes the denominator equal to zero makes the entire expression undefined.

Set the denominator equal to zero

Factor the left side

Now set each factor equal to zero:

or

or Now solve for q in each case

So the values and make the rational expression undefined
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