Question

For x != 0, which equation follows at 1/x?

$$2f(x) - 3f(1/x) = -x^{2} - 2\frac{1}{x^{2}}$$

Accepted Answer

$$2f(1/x) - 3f(x) = -2x^{2} - \frac{1}{x^{2}}$$

Answer

$$2f(1/x) - 3f(x) = -2x^{2}$$

Answer

$$2f(1/x) - 3f(x) = -x^{2} + \frac{1}{x^{2}}$$

Answer

$$2f(1/x) - 3f(x) = -2x^{2} - 2\frac{1}{x^{2}}$$

Practice: Functional Equation - Reciprocal Input Equation