Question

find the values of x that are NOT in the domain of the function f(x)=x-7/x^2-25
what does this question mean exactly?

Answer 1

Find x values that make the function fail... like zero in the denominator.

Answer 2

it means the denominator of function has to be # 0
so (x^2 -25) #0

Answer 3

ok, so x=5 would work then right. -35/0

Answer 4

5 and -5 will both create an undefined situation... yes

Answer 5

oh, yea, thats true.

Answer 6

thanks @EulerGroupie

Answer 7

You're welcome.