1. **State the problem:** Solve the quadratic equation $$f(x) = x^2 - 5x + 6 = 0$$ to find its roots.
2. **Recall the quadratic formula:** For any quadratic equation $$ax^2 + bx + c = 0$$, the roots are given by
$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$
where $$a=1$$, $$b=-5$$, and $$c=6$$ in this case.
3. **Calculate the discriminant:**
$$\Delta = b^2 - 4ac = (-5)^2 - 4(1)(6) = 25 - 24 = 1$$
Since $$\Delta > 0$$, there are two distinct real roots.
4. **Factorize the quadratic:**
We look for two numbers that multiply to $$6$$ and add to $$-5$$, which are $$-2$$ and $$-3$$.
So,
$$x^2 - 5x + 6 = (x - 2)(x - 3)$$
5. **Solve for roots:**
Set each factor equal to zero:
$$x - 2 = 0 \Rightarrow x = 2$$
$$x - 3 = 0 \Rightarrow x = 3$$
6. **Verify with quadratic formula:**
$$x = \frac{-(-5) \pm \sqrt{1}}{2(1)} = \frac{5 \pm 1}{2}$$
So,
$$x = \frac{5 + 1}{2} = 3$$
$$x = \frac{5 - 1}{2} = 2$$
**Final answer:** The roots of the quadratic equation are $$x = 2$$ and $$x = 3$$.
Quadratic Roots 160Bfb
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