x = ± 6i
step-by-step explanation:
x^2 = -36
take the square root of each side
sqrt(x^2) = sqrt(-36)
we know sqrt(ab) = sqrt(a) sqrt(b)
x = ±sqrt(36) sqrt(-1)
we know that sqrt (-1) = i
answer: all of the odd numbers were opened
the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.