Subjects algebra

Quadratic Solution 66E176

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Quadratic Solution 66E176


1. **Problem Statement:** Solve the equation $x^2 - 5x + 6 = 0$. 2. **Formula and Rules:** This is a quadratic equation of the form $ax^2 + bx + c = 0$. The solutions can be found using the quadratic formula: $$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$ where $a=1$, $b=-5$, and $c=6$. 3. **Calculate the discriminant:** $$\Delta = b^2 - 4ac = (-5)^2 - 4 \times 1 \times 6 = 25 - 24 = 1$$ 4. **Find the roots:** $$x = \frac{-(-5) \pm \sqrt{1}}{2 \times 1} = \frac{5 \pm 1}{2}$$ 5. **Evaluate each root:** - For $+$ sign: $x = \frac{5 + 1}{2} = \frac{6}{2} = 3$ - For $-$ sign: $x = \frac{5 - 1}{2} = \frac{4}{2} = 2$ 6. **Final answer:** The solutions to the equation are $x=3$ and $x=2$. These values satisfy the original quadratic equation.