The rational function is defined for all real except at certain excluded values
MATHEMATICS · Single correct · AP · AP Precalculus · Polynomial and Rational Functions · Polynomial and Rational Functions
Problem
The rational function h(x)=(x2−5x+6)(x+4)2x is defined for all real x except at certain excluded values. Which of the following lists all such excluded values?
(a) {2,3,4}
(b) {0,2,3,−4}
(c) {−4,2,3}
(d) {2,3}