Question

Find all numbers for which the rational expression is undefined.

(t^3-3t)/(t^2-64)

Answer 1

8

Answer 2

8 and -8

Answer 3

the denominator cannot be zero, what x value make the denominator 0?, in there words you must solve: t^2-64=0

Answer 4

yes, -8 is also included, b/c (-8)^2=64

Answer 5

either 8 or -8