Posted by Hannah on .
Find the domain of the following rational function.
R(x) = 3x^2 / x^2 + 2x  48
(x+8)(x6)
So the domain is x cannot be 8 or 6. Am I correct?

Math(Please check) 
Reiny,
close ...
you factored the bottom correctly to
(x+8)(x6)
now each of those can't be zero
x+8 ≠ 0
x ≠ 8
likewise x ≠ 6
notice the sign inside the bracket changed as you set them equal to x