Hey there!
The correct answer would most likely be:
Because,
[tex](6x^3)^3 = \\ \\ \\ \\ 6x^3(6x^3)(6x^3) = \\ \\ \\ 6(6)(6) = 216 \\ \\ \\ = 3(3) = 9 \\ \\ \\ Answer: 216x^9 [/tex]
Good luck on your assignment and enjoy your day!
~[tex]LoveYourselfFIrst:) [/tex]