1. **State the problem:** We are given the function $f(x) = 3x^4 - 5x^2 + 7$ and we want to understand its behavior or solve related questions.
2. **Identify the function type:** This is a polynomial function of degree 4.
3. **Find the derivative to analyze critical points:**
$$f'(x) = \frac{d}{dx}(3x^4 - 5x^2 + 7) = 12x^3 - 10x$$
4. **Set the derivative equal to zero to find critical points:**
$$12x^3 - 10x = 0$$
5. **Factor the equation:**
$$2x(6x^2 - 5) = 0$$
6. **Solve for $x$:**
- $2x = 0 \Rightarrow x = 0$
- $6x^2 - 5 = 0 \Rightarrow 6x^2 = 5 \Rightarrow x^2 = \frac{5}{6} \Rightarrow x = \pm \sqrt{\frac{5}{6}}$
7. **Summary:** The critical points are at $x = 0$, $x = \sqrt{\frac{5}{6}}$, and $x = -\sqrt{\frac{5}{6}}$.
These points can be used to analyze the function's maxima, minima, or points of inflection.
Polynomial Derivative 29B723
Step-by-step solutions with LaTeX - clean, fast, and student-friendly.