For which of the following equations is x = 6 the
only solution?
A. (6x)2 = 0)
B. (x - 6)? = 0
C. (x + 6)2 = 0
D. (x - 6)(x + 6) = 0

B and D. B because if x would equal 6, that means they are saying 6 - 6 which would be zero! So that one is correct.

D is also correct because on (x - 6), it’s 6 - 6 which is 0. And for the second one (x + 6), That means it’s 6 + 6, which equals 12. Now you will end up with (0)(12). Now since 0 and 12 are touching each other in parenthesis, that means you multiply! So that equals 0 because 0x12 equals 0! So it’s correct! So that means B and D are correct!