1. **Problem statement:** Determine the real zeros of a given function or polynomial. 2. **General approach:** To find real zeros, we solve the equation $$f(x) = 0$$ where $f(x)$ is the function or polynomial. 3. **Example:** Suppose the function is $$f(x) = x^2 - 4$$. We set it equal to zero: $$x^2 - 4 = 0$$ 4. **Solve the equation:** $$x^2 = 4$$ 5. **Take the square root of both sides:** $$x = \pm \sqrt{4}$$ 6. **Simplify:** $$x = \pm 2$$ 7. **Interpretation:** The real zeros of the function are $x = 2$ and $x = -2$. This method applies to any polynomial or function where you can isolate $x$ and solve for zeros.