If 4 to the x power is 6 then what is the value of 8 to the power of x

answer choice
a 8
b 6 time square root of 6
c 9
d 9 times square root of 6
explain pls

4^x = 6

2^x = √4^x = √6
8^x = (2*4)^x = 2^x * 4^x = 6√6

or,

8^x = (4^(3/2))^x = (4^x)^(3/2) = 6^(3/2) = 6√6