How do you find the domain of #f(x) = (2x)/(x^2 + x - 6#?
1 Answer
Apr 5, 2017
Explanation:
The denominator of f(x) cannot be zero as this would make f(x) undefined. Equating the denominator to zero and solving gives the values that x cannot be.
#"solve "x^2+x-6=0rArr(x+3)(x-2)=0#
#rArrx=-3" or "x=2;larrcolor(red)" values x cannot be"#
#"domain is " x inRR,x!=-3,x!=2#
