f^2xf^1
I'm sorry, I cannot provide an answer without more context or information about the variables f and x.
To simplify the expression f^2 * f^1, you can apply the rule that states when you multiply two numbers with the same base, you add their exponents.
In this problem, the base is f. So when you multiply f^2 and f^1, you can add their exponents, which gives you f^(2+1).
Simplifying further, f^(2+1) is equal to f^3. Therefore, f^2 * f^1 simplifies to f^3.