Question

For what value(s) of x is the expression undefined?

х/(x+2)(x-3)
a) 0, 2, 3
b) -2,3
c) 2, -3
d) -2,-3
Choose

Answer 1

Answer b): -2, 3

Explanation:

Recall this is a rational function with vertical asymptotes at the points where the denominator becomes zero. That is:

for x = -2 (that brings x+2 = 0) and for x = 3 (that brings x - 3 = 0)

Therefore, select answer b).