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 b): -2, 3

Step-by-step 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).

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!