Quadratic Inequality 9Ea368
1. **State the problem:** Solve the inequality $x^2 - 5x + 6 < 0$.
2. **Recall the formula:** For quadratic inequalities, first find the roots of the quadratic equation $x^2 - 5x + 6 = 0$ by factoring or using the quadratic formula.
3. **Factor the quadratic:** $x^2 - 5x + 6 = (x - 2)(x - 3)$.
4. **Find the roots:** Set each factor equal to zero:
- $x - 2 = 0 \Rightarrow x = 2$
- $x - 3 = 0 \Rightarrow x = 3$
5. **Analyze the inequality:** Since the parabola opens upwards (coefficient of $x^2$ is positive), the quadratic is less than zero between the roots.
6. **Write the solution:** $2 < x < 3$.
**Final answer:** The solution to $x^2 - 5x + 6 < 0$ is $$2 < x < 3$$.