Final answer:
The expression 27x^12 can be written as a cube of a monomial as 19683x^36.
Step-by-step explanation:
To write the expression 27x^12 as a cube of a monomial, we need to cube both the coefficient and the variable term. The cube of 27 is 27^3 = 19683, and the cube of x^12 is (x^12)^3 = x^36. So, the expression as a cube of a monomial is 19683x^36.