SOLUTION: How do you solve: Find all the values of x for which the rational expression is undefined. x^2 - 4x/x^2 + 4 I already have the numerators. Thank you!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: How do you solve: Find all the values of x for which the rational expression is undefined. x^2 - 4x/x^2 + 4 I already have the numerators. Thank you!      Log On


   

Question 292962: How do you solve:
Find all the values of x for which the rational expression is undefined.
x^2 - 4x/x^2 + 4
I already have the numerators.
Thank you!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
The rational expression is undefined when the denominator is zero. So just solve x%5E2%2B4=0 to find the 'x' values that make the expression undefined.