Questions: Use the quadratic formula to solve 3x^2-x+10=0
x=(-b ± sqrt(b^2-4ac))/(2a)
(1+sqrt(119)i)/3 and (1-sqrt(119)i)/3 (1+sqrt(119)i)/6 and (1-sqrt(119)i)/6
(-1+sqrt(119)i)/3 and (-1-sqrt(119)i)/3 (-1+sqrt(119)i)/6 and (-1-sqrt(119)i)/6
Transcript text: Use the quadratic formula to solve $3 x^{2}-x+10=0$
\[
x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}
\]
$\frac{1+\sqrt{119} i}{3}$ and $\frac{1-\sqrt{119} i}{3}$ $\frac{1+\sqrt{119} i}{6}$ and $\frac{1-\sqrt{119} i}{6}$
$\frac{-1+\sqrt{119} i}{3}$ and $\frac{-1-\sqrt{119} i}{3}$ $\frac{-1+\sqrt{119} i}{6}$ and $\frac{-1-\sqrt{119} i}{6}$
Solution
Solution Steps
To solve the quadratic equation \(3x^2 - x + 10 = 0\) using the quadratic formula, identify the coefficients \(a = 3\), \(b = -1\), and \(c = 10\). Substitute these values into the quadratic formula \(x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}\) to find the roots of the equation. Since the discriminant \(b^2 - 4ac\) is negative, the solutions will be complex numbers.
Step 1: Identify Coefficients
For the quadratic equation \(3x^2 - x + 10 = 0\), we identify the coefficients as follows:
\(a = 3\)
\(b = -1\)
\(c = 10\)
Step 2: Calculate the Discriminant
The discriminant \(D\) is calculated using the formula:
\[
D = b^2 - 4ac
\]
Substituting the values, we have:
\[
D = (-1)^2 - 4 \cdot 3 \cdot 10 = 1 - 120 = -119
\]
Step 3: Apply the Quadratic Formula
Since the discriminant is negative, the solutions will be complex. We use the quadratic formula:
\[
x = \frac{-b \pm \sqrt{D}}{2a}
\]
Substituting the values, we find:
\[
x = \frac{1 \pm \sqrt{-119}}{6}
\]
This simplifies to:
\[
x = \frac{1 \pm i\sqrt{119}}{6}
\]
Final Answer
The solutions to the equation are:
\[
x_1 = \frac{1 + i\sqrt{119}}{6}, \quad x_2 = \frac{1 - i\sqrt{119}}{6}
\]
Thus, the final boxed answers are:
\[
\boxed{x_1 = \frac{1 + i\sqrt{119}}{6}, \quad x_2 = \frac{1 - i\sqrt{119}}{6}}
\]