Determine the solution for x^2 + 36 > 12x

(6, ∞)

(-∞, 6)

Step-by-step explanation:

x^2 + 36 > 12x

Subtract 12 x from each side

x^2 -12 x+ 36 > 12x-12x

x^2 -12 x+ 36 > 0

Factor

What 2 numbers multiply together to give us 36 and add together to give us 12

-6*-6 = 36

-6+-6 = 12

(x-6) ^2 > 0

Take the square root of each side

x-6 >0   or  x-6 <0

x>6     or   x < 6

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.