Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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![### Synthetic Division Method Explanation
**Objective:** Use synthetic division to divide \( x^3 + 4x^2 - 13x - 20 \) by \( x - 3 \).
#### Steps:
1. **Setup the Synthetic Division:**
- Write down the coefficients of the polynomial \( x^3 + 4x^2 - 13x - 20 \).
- Coefficients: \( 1, 4, -13, -20 \)
- The divisor \( x-3 \) gives us a value of \( 3 \) (we take \( x- 3 = 0 \) which results in \( x = 3 \)).
2. **Arrange in Synthetic Division Format:**
- Write \( 3 \) on the left-hand side.
- Write the coefficients \( 1, 4, -13, -20 \) on the right-hand side in a row.
3. **Perform the Division:**
- Draw a horizontal line below the coefficients and a vertical line separating the divisor \( 3 \) from the coefficients.
- Bring down the first coefficient (1).
- Multiply the number brought down by the divisor \( 3 \).
- Write the product under the next coefficient and add.
- Repeat the process for the remaining coefficients.
#### Visual Representation:
\[
\begin{array}{r|rrrr}
3 & 1 & 4 & -13 & -20 \\
& & 3 & 21 & 24 \\
\hline
& 1 & 7 & 8 & 4 \\
\end{array}
\]
#### Explanation of Steps in the Diagram:
- The first coefficient (1) is brought down unchanged.
- Next, multiply \( 1 \) (brought down) by \( 3 \) (divisor) to get \( 3 \).
- Add \( 3 \) to \( 4 \), resulting in \( 7 \).
- Multiply \( 7 \) by \( 3 \) to get \( 21 \).
- Add \( 21 \) to \( -13 \), resulting in \( 8 \).
- Multiply \( 8 \) by \( 3 \) to get \( 24 \).
- Add \( 24 \) to \( -20 \), resulting](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd2cfdfc8-ec6f-4853-bb37-f02ea76b87be%2F18accf86-e23d-4e58-a1a4-ebd1972a8217%2F5m4ot0q_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Synthetic Division Method Explanation
**Objective:** Use synthetic division to divide \( x^3 + 4x^2 - 13x - 20 \) by \( x - 3 \).
#### Steps:
1. **Setup the Synthetic Division:**
- Write down the coefficients of the polynomial \( x^3 + 4x^2 - 13x - 20 \).
- Coefficients: \( 1, 4, -13, -20 \)
- The divisor \( x-3 \) gives us a value of \( 3 \) (we take \( x- 3 = 0 \) which results in \( x = 3 \)).
2. **Arrange in Synthetic Division Format:**
- Write \( 3 \) on the left-hand side.
- Write the coefficients \( 1, 4, -13, -20 \) on the right-hand side in a row.
3. **Perform the Division:**
- Draw a horizontal line below the coefficients and a vertical line separating the divisor \( 3 \) from the coefficients.
- Bring down the first coefficient (1).
- Multiply the number brought down by the divisor \( 3 \).
- Write the product under the next coefficient and add.
- Repeat the process for the remaining coefficients.
#### Visual Representation:
\[
\begin{array}{r|rrrr}
3 & 1 & 4 & -13 & -20 \\
& & 3 & 21 & 24 \\
\hline
& 1 & 7 & 8 & 4 \\
\end{array}
\]
#### Explanation of Steps in the Diagram:
- The first coefficient (1) is brought down unchanged.
- Next, multiply \( 1 \) (brought down) by \( 3 \) (divisor) to get \( 3 \).
- Add \( 3 \) to \( 4 \), resulting in \( 7 \).
- Multiply \( 7 \) by \( 3 \) to get \( 21 \).
- Add \( 21 \) to \( -13 \), resulting in \( 8 \).
- Multiply \( 8 \) by \( 3 \) to get \( 24 \).
- Add \( 24 \) to \( -20 \), resulting
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