Limit Zero 310F39
1. **State the problem:** Find the limit $$\lim_{x \to 0} \frac{x^3 - 3x^2 + x}{x^3 - 2x}$$.
2. **Recall the limit rule:** If direct substitution leads to an indeterminate form like $$\frac{0}{0}$$, try to simplify the expression by factoring or algebraic manipulation.
3. **Check direct substitution:** Substitute $x=0$:
$$\frac{0^3 - 3\cdot0^2 + 0}{0^3 - 2\cdot0} = \frac{0}{0}$$ which is indeterminate.
4. **Factor numerator and denominator:**
Numerator: $$x^3 - 3x^2 + x = x(x^2 - 3x + 1)$$
Denominator: $$x^3 - 2x = x(x^2 - 2)$$
5. **Simplify the fraction:**
$$\frac{x(x^2 - 3x + 1)}{x(x^2 - 2)} = \frac{x^2 - 3x + 1}{x^2 - 2}$$ for $x \neq 0$.
6. **Evaluate the simplified limit:** Substitute $x=0$:
$$\frac{0^2 - 3\cdot0 + 1}{0^2 - 2} = \frac{1}{-2} = -\frac{1}{2}$$.
7. **Conclusion:** The limit is $$-\frac{1}{2}$$.
This means as $x$ approaches 0, the value of the function approaches $$-\frac{1}{2}$$.