solve:t - sqrt(6t - 9) = 0

Question

a) none or 0
b) (-3,3)
c) (3)
d) (-3)

c

Answer 1

t = sqrt(6t-9)
t^2 = 6 t - 9
t^2 -6t+9 = 0
(t-3)(t-3) = 0
t = 3

Answer 2

thanks damon :)