2. Let f(x)=2x²- x- 3 and g(x)=x+1. Find each function and determine its domain. 2a. (f+g)(x) 2b. (f- g)(x)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Find each function and determine it’s domain! It has the substitution property in the description for #2
## Algebra of Functions, Specifying Domains (pp 248-250)

### Pencil Problem #2 ✏️

2. Let \( f(x) = 2x^2 - x - 3 \) and \( g(x) = x + 1 \). Find each function and determine its domain.

#### 2a. \((f + g)(x)\)

#### 2b. \((f - g)(x)\)

---

**Explanation:**
- **Given Functions:**
  - \( f(x) = 2x^2 - x - 3 \)
  - \( g(x) = x + 1 \)

- **Tasks:**
  - Find the expressions for \((f + g)(x)\) and \((f - g)(x)\).
  - Determine the domain of each resulting function.

There are no graphs or diagrams provided in this problem.
Transcribed Image Text:## Algebra of Functions, Specifying Domains (pp 248-250) ### Pencil Problem #2 ✏️ 2. Let \( f(x) = 2x^2 - x - 3 \) and \( g(x) = x + 1 \). Find each function and determine its domain. #### 2a. \((f + g)(x)\) #### 2b. \((f - g)(x)\) --- **Explanation:** - **Given Functions:** - \( f(x) = 2x^2 - x - 3 \) - \( g(x) = x + 1 \) - **Tasks:** - Find the expressions for \((f + g)(x)\) and \((f - g)(x)\). - Determine the domain of each resulting function. There are no graphs or diagrams provided in this problem.
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