Question

find all numbers for which the rational expression is undefined.
t^3-5t/t^2-36

Answer 1

t not equal to 6, -6

Answer 2

factor and you'll get :\[= t(t^2 - 5)/(t-6)(t+6)\]

take the zeros of the denominator ^_^ like what divanshu did :)

Answer 3

is it clear now Rena? :)