🎴 Flashcard Mode
Solving Polynomial Equations
Card1 / 5
Mastered0
Review0
QuestionClick to flip
Solve the equation $x^2 - 4x + 3 = 0$.
AnswerClick to flip back
A
$x = 1, 3$
💡 Explanation:
To solve the equation, we can use the quadratic formula: $x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$. Plugging in the values $a = 1$, $b = -4$, and $c = 3$, we get $x = \frac{-(-4) \pm \sqrt{(-4)^2 - 4(1)(3)}}{2(1)} = \frac{4 \pm \sqrt{16 - 12}}{2} = \frac{4 \pm \sqrt{4}}{2} = \frac{4 \pm 2}{2}$. Therefore, the solutions are $x = 1$ and $x = 3$.