SOLUTION: how do i find a hole in a graph if the problem looks like this f(x)= (2x^2+4x-6)/(x^2-3x)

Algebra ->  Rational-functions -> SOLUTION: how do i find a hole in a graph if the problem looks like this f(x)= (2x^2+4x-6)/(x^2-3x)       Log On


   

Question 852745: how do i find a hole in a graph if the problem looks like this
f(x)= (2x^2+4x-6)/(x^2-3x)
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
Look for a polynomial factor which is both in the numerator and the denominator. In your example, completely factorize the numerator and the denominator and look for any repeated factor common to both numerator and denominator.