Express the rational function as a sum or difference of two simpler rational expressions. 2x (x+2)² 4 + x+2 (x+2)² 3 x+2 (r+2)² 4 x+2 (x+2)² 4 x+2 (x+2)²

Calculus: Early Transcendentals
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Author:James Stewart
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Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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### Express the Rational Function as a Sum or Difference of Two Simpler Rational Expressions

Given the rational function:
\[ \frac{2x}{(x+2)^2} \]

We need to express this function as a sum or difference of two simpler rational expressions. The options provided are:

1. \[ \frac{2}{x+2} + \frac{4}{(x+2)^2} \]
2. \[ \frac{2}{x+2} - \frac{3}{(x+2)^2} \]
3. \[ \frac{1}{x+2} - \frac{4}{(x+2)^2} \]
4. \[ \frac{2}{x+2} - \frac{4}{(x+2)^2} \]

### Explanation

The goal is to decompose the given rational function into a form that simplifies the understanding and manipulation of the expression. Each option represents a possible way to break down the given rational function.

- The numerator and the denominator in each option suggest different ways to express \( \frac{2x}{(x+2)^2} \) by separating the terms into simpler fractions with \( (x+2) \) and \( (x+2)^2 \) denominators.
  
- The first option involves adding two fractions with the denominators \( x+2 \) and \( (x+2)^2 \).
  
- The second, third, and fourth options involve subtracting two fractions where both include \( x+2 \) or \( (x+2)^2 \) in the denominators.

To solve this, you would need to verify which of these decompositions results in the original function \( \frac{2x}{(x+2)^2} \) when combined.
Transcribed Image Text:### Express the Rational Function as a Sum or Difference of Two Simpler Rational Expressions Given the rational function: \[ \frac{2x}{(x+2)^2} \] We need to express this function as a sum or difference of two simpler rational expressions. The options provided are: 1. \[ \frac{2}{x+2} + \frac{4}{(x+2)^2} \] 2. \[ \frac{2}{x+2} - \frac{3}{(x+2)^2} \] 3. \[ \frac{1}{x+2} - \frac{4}{(x+2)^2} \] 4. \[ \frac{2}{x+2} - \frac{4}{(x+2)^2} \] ### Explanation The goal is to decompose the given rational function into a form that simplifies the understanding and manipulation of the expression. Each option represents a possible way to break down the given rational function. - The numerator and the denominator in each option suggest different ways to express \( \frac{2x}{(x+2)^2} \) by separating the terms into simpler fractions with \( (x+2) \) and \( (x+2)^2 \) denominators. - The first option involves adding two fractions with the denominators \( x+2 \) and \( (x+2)^2 \). - The second, third, and fourth options involve subtracting two fractions where both include \( x+2 \) or \( (x+2)^2 \) in the denominators. To solve this, you would need to verify which of these decompositions results in the original function \( \frac{2x}{(x+2)^2} \) when combined.
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