Questions: Use the quadratic formula to solve for (x).
[3 x^2-6 x+2=0]
Round your answer to the nearest hundredth.
If there is more than one solution, separate them with commas.
Transcript text: Use the quadratic formula to solve for $x$.
\[
3 x^{2}-6 x+2=0
\]
Round your answer to the nearest hundredth.
If there is more than one solution, separate them with commas.
Solution
Solution Steps
To solve the quadratic equation \(3x^2 - 6x + 2 = 0\) using the quadratic formula, we first identify the coefficients \(a = 3\), \(b = -6\), and \(c = 2\). The quadratic formula is given by:
\[
x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}
\]
We will calculate the discriminant \(b^2 - 4ac\) and then use it to find the two possible values for \(x\). Finally, we will round the solutions to the nearest hundredth.
Step 1: Identify Coefficients
For the quadratic equation \(3x^2 - 6x + 2 = 0\), we identify the coefficients as follows:
\(a = 3\)
\(b = -6\)
\(c = 2\)
Step 2: Calculate the Discriminant
We calculate the discriminant using the formula \(D = b^2 - 4ac\):
\[
D = (-6)^2 - 4 \cdot 3 \cdot 2 = 36 - 24 = 12
\]
Step 3: Apply the Quadratic Formula
Using the quadratic formula \(x = \frac{-b \pm \sqrt{D}}{2a}\), we find the two solutions:
\[
x_1 = \frac{-(-6) + \sqrt{12}}{2 \cdot 3} = \frac{6 + 2\sqrt{3}}{6} = 1 + \frac{\sqrt{3}}{3}
\]
\[
x_2 = \frac{-(-6) - \sqrt{12}}{2 \cdot 3} = \frac{6 - 2\sqrt{3}}{6} = 1 - \frac{\sqrt{3}}{3}
\]
Step 4: Round the Solutions
Calculating the numerical values and rounding to the nearest hundredth:
\[
x_1 \approx 1.58
\]
\[
x_2 \approx 0.42
\]
Final Answer
The solutions to the equation \(3x^2 - 6x + 2 = 0\) are:
\[
\boxed{x = 1.58, 0.42}
\]