Answer:
C) 3(x + 3y + 5)
D) 3x + 3(3y +5)
1) "x2" was replaced by "x^2". 1 more similar replacement(s).
Raising zero to a power is not allowed
0 / 6 is equal to 0 because anything that divides 0 will always be zero but never if the problem is 6/0
California is at higher risks for earthquakes, because it near the Pacific Ocean