Answer
The quadratic expression \(3x^{2} - 6x + 6\) can be factored as \(3(x - 1)^2 + 3\).
Solution
Certainly! It looks like you're working with the quadratic expression:
\[ 3x^{2} - 6x + 6 \]
Let's explore different ways to analyze and manipulate this expression.
### 1. **Factoring Out the Greatest Common Factor (GCF)**
First, identify the greatest common factor of the coefficients:
- The GCF of \(3\), \(-6\), and \(6\) is **3**.
Factor out the GCF:
\[
3x^{2} - 6x + 6 = 3(x^{2} - 2x + 2)
\]
### 2. **Determining if the Quadratic Can Be Factored Further**
Next, check if the quadratic inside the parentheses can be factored over the real numbers.
Consider the quadratic equation:
\[
x^{2} - 2x + 2
\]
To determine if it can be factored, calculate the **discriminant** (\(D\)):
\[
D = b^{2} - 4ac = (-2)^2 - 4(1)(2) = 4 - 8 = -4
\]
Since the discriminant is **negative** (\(D = -4\)), the quadratic does not have real roots and cannot be factored further using real numbers. However, it can be factored using complex numbers:
\[
x = \frac{2 \pm \sqrt{-4}}{2} = 1 \pm i
\]
So, the factored form over the complex numbers is:
\[
3(x - (1 + i))(x - (1 - i))
\]
### 3. **Completing the Square**
Another way to rewrite the quadratic is by completing the square:
\[
3x^{2} - 6x + 6 = 3(x^{2} - 2x) + 6
\]
Complete the square inside the parentheses:
\[
x^{2} - 2x = (x - 1)^2 - 1
\]
Substitute back:
\[
3((x - 1)^2 - 1) + 6 = 3(x - 1)^2 - 3 + 6 = 3(x - 1)^2 + 3
\]
So, the expression in completed square form is:
\[
3(x - 1)^2 + 3
\]
### 4. **Vertex Form and Graphing**
From the completed square form \(3(x - 1)^2 + 3\), you can identify the vertex of the parabola represented by the quadratic function \(y = 3x^{2} - 6x + 6\):
- **Vertex:** \((1, 3)\)
- **Direction:** Since the coefficient of \((x - 1)^2\) is positive (\(3 > 0\)), the parabola opens **upwards**.
### 5. **Summary**
- **Original Expression:** \(3x^{2} - 6x + 6\)
- **Factored Form (over complex numbers):** \(3(x - (1 + i))(x - (1 - i))\)
- **Completed Square Form:** \(3(x - 1)^2 + 3\)
- **Vertex:** \((1, 3)\)
If you have a specific operation or analysis you'd like to perform on this expression, feel free to let me know!
Reviewed and approved by the UpStudy tutoring team
Explain
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