The difference between the squares of two consecutive positive integers is 17. Find the integers. (Hint: Let x and x + 1 represent the consecutive integers.) (smaller value) (larger value)
The difference between the squares of two consecutive positive integers is 17. Find the integers. (Hint: Let x and x + 1 represent the consecutive integers.) (smaller value) (larger value)
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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![**Problem Statement:**
The difference between the squares of two consecutive positive integers is **17**. Find the integers. *(Hint: Let x and x + 1 represent the consecutive integers.)*
**Solution Steps:**
1. **Let the integers be x and x + 1:**
- We are given two consecutive integers. Let's denote the smaller integer by \( x \) and the larger integer by \( x + 1 \).
2. **Expression for squares:**
- The square of the smaller integer is \( x^2 \).
- The square of the larger integer is \( (x + 1)^2 \).
3. **Difference between squares:**
- According to the problem, the difference between their squares is 17. Therefore, we can set up the equation:
\[
(x + 1)^2 - x^2 = 17
\]
4. **Expand and simplify the equation:**
- Expanding the left-hand side, we get:
\[
(x^2 + 2x + 1) - x^2 = 17
\]
- Simplify to:
\[
2x + 1 = 17
\]
5. **Solve for x:**
- Isolate \( x \) by subtracting 1 from both sides:
\[
2x = 16
\]
- Divide both sides by 2:
\[
x = 8
\]
6. **Find the consecutive integers:**
- The smaller value is \( x = 8 \).
- The larger value is:
\[
x + 1 = 9
\]
**Answer Boxes:**
- **Smaller value:** [ 8 ]
- **Larger value:** [ 9 ]
By plugging these values into the given relationship, we can verify that the difference between their squares is indeed 17:
\[
(9)^2 - (8)^2 = 81 - 64 = 17
\]
Thus, the consecutive positive integers are 8 and 9.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcfa510ce-a779-4198-b3d3-c9e941c192c9%2F04a202fa-f844-4368-b1fd-65187c7c1535%2F8c42ud_processed.png&w=3840&q=75)
Transcribed Image Text:**Problem Statement:**
The difference between the squares of two consecutive positive integers is **17**. Find the integers. *(Hint: Let x and x + 1 represent the consecutive integers.)*
**Solution Steps:**
1. **Let the integers be x and x + 1:**
- We are given two consecutive integers. Let's denote the smaller integer by \( x \) and the larger integer by \( x + 1 \).
2. **Expression for squares:**
- The square of the smaller integer is \( x^2 \).
- The square of the larger integer is \( (x + 1)^2 \).
3. **Difference between squares:**
- According to the problem, the difference between their squares is 17. Therefore, we can set up the equation:
\[
(x + 1)^2 - x^2 = 17
\]
4. **Expand and simplify the equation:**
- Expanding the left-hand side, we get:
\[
(x^2 + 2x + 1) - x^2 = 17
\]
- Simplify to:
\[
2x + 1 = 17
\]
5. **Solve for x:**
- Isolate \( x \) by subtracting 1 from both sides:
\[
2x = 16
\]
- Divide both sides by 2:
\[
x = 8
\]
6. **Find the consecutive integers:**
- The smaller value is \( x = 8 \).
- The larger value is:
\[
x + 1 = 9
\]
**Answer Boxes:**
- **Smaller value:** [ 8 ]
- **Larger value:** [ 9 ]
By plugging these values into the given relationship, we can verify that the difference between their squares is indeed 17:
\[
(9)^2 - (8)^2 = 81 - 64 = 17
\]
Thus, the consecutive positive integers are 8 and 9.
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