Final answer:
The expanded form of log(21/x²) is log(21) - 2 log(x).
Step-by-step explanation:
To expand the expression log(21/x²), we can utilize the logarithmic properties. We know that the logarithm of a quotient is equal to the difference of the logarithms of the numerator and the denominator. Therefore, log(21/x²) can be expanded as log(21) - log(x²). Since the logarithm of x² is equivalent to 2 times the logarithm of x, we can further simplify the expression to log(21) - 2 log(x).