Answer:
3 x^3
Explanation:
(81x^12/3x^3)^1/3
First step is to simplify inside the parenthesis
(81/3 * x^12/x^3) ^ 1/3
When we divide bases with the same exponent, we subtract the exponents
(27 x^(12-3) ^ 1/3
(27x^9) ^ 1/3
27 ^ 1/3 x^9 ^1/3
Power to the power rule says multiply
27 ^ 1/3 x^9 *1/3
27^1/3 x^3
3 x^3