Divide using synthetic division. 2x°- 4x +3x° + 4x-3x+4 x+2 1.

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Chapter4: Polynomial And Rational Functions
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### Synthetic Division Example

1. Divide using synthetic division.

\[ \frac{2x^5 - 4x^4 + 3x^3 + 4x^2 - 3x + 4}{x + 2} \]

In this problem, we are given a polynomial \(2x^5 - 4x^4 + 3x^3 + 4x^2 - 3x + 4\) that we need to divide by \(x + 2\) using synthetic division. 

Here are the steps:

1. **Identify the coefficients of the polynomial**:
   - The polynomial \(2x^5 - 4x^4 + 3x^3 + 4x^2 - 3x + 4\) has these coefficients: 2, -4, 3, 4, -3, 4.

2. **Write the inverse of the divisor's coefficient**:
   - The divisor is \(x + 2\). The inverse of 2 (which comes from \(x + 2 = 0\) solving to \(x = -2\)) is -2. 

3. **Set up the synthetic division table**:
   - Write -2 on the left side.
   - Write the coefficients in a row: 2, -4, 3, 4, -3, 4.

4. **Perform the synthetic division**:
   - Drop the first coefficient (2) straight down.
   - Multiply -2 by 2, and write the result under the second coefficient.
   - Add the second coefficient (-4) with this result (-4 + -4).
   - Continue the process across all coefficients.

The synthetic division steps would look like this:

```
-2 |  2  -4   3   4  -3   4
   |     -4  16 -38  68 -130
   ------------------------
     2  -8  19 -34  65 -126
```

### Explaining the Table:
- **First Row**: Coefficients of the polynomial.
- **Second Row**: The results from multiplying and adding each step.
- **Third Row**: The coefficients of the quotient polynomial.

### Quotient Polynomial
The result of the division is:
\[2x^4 - 8x^3 +
Transcribed Image Text:### Synthetic Division Example 1. Divide using synthetic division. \[ \frac{2x^5 - 4x^4 + 3x^3 + 4x^2 - 3x + 4}{x + 2} \] In this problem, we are given a polynomial \(2x^5 - 4x^4 + 3x^3 + 4x^2 - 3x + 4\) that we need to divide by \(x + 2\) using synthetic division. Here are the steps: 1. **Identify the coefficients of the polynomial**: - The polynomial \(2x^5 - 4x^4 + 3x^3 + 4x^2 - 3x + 4\) has these coefficients: 2, -4, 3, 4, -3, 4. 2. **Write the inverse of the divisor's coefficient**: - The divisor is \(x + 2\). The inverse of 2 (which comes from \(x + 2 = 0\) solving to \(x = -2\)) is -2. 3. **Set up the synthetic division table**: - Write -2 on the left side. - Write the coefficients in a row: 2, -4, 3, 4, -3, 4. 4. **Perform the synthetic division**: - Drop the first coefficient (2) straight down. - Multiply -2 by 2, and write the result under the second coefficient. - Add the second coefficient (-4) with this result (-4 + -4). - Continue the process across all coefficients. The synthetic division steps would look like this: ``` -2 | 2 -4 3 4 -3 4 | -4 16 -38 68 -130 ------------------------ 2 -8 19 -34 65 -126 ``` ### Explaining the Table: - **First Row**: Coefficients of the polynomial. - **Second Row**: The results from multiplying and adding each step. - **Third Row**: The coefficients of the quotient polynomial. ### Quotient Polynomial The result of the division is: \[2x^4 - 8x^3 +
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