Let f(x) = V+ 8- 9 and g(a) = V + 8 – 9. Solve f(a) = g(x). %3D
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
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Question
Let f(x)=
![**Problem Statement:**
Let \( f(x) = \sqrt{x + 8} - 9 \) and \( g(x) = \sqrt{x + 8} - 9 \).
**Task:**
Solve \( f(x) = g(x) \).
**Solution Field:**
\( x = \) [Input Box]
**Action:**
[Submit Question Button]
**Explanation:**
In this problem, you're given two functions, \( f(x) \) and \( g(x) \), which are initially expressed as square root functions with the same form. You are then asked to find the values of \( x \) for which these two functions are equal, meaning:
\[ \sqrt{x + 8} - 9 = \sqrt{x + 8} - 9 \]
Note that since both functions are identical, this equation holds for any real number \( x \) for which the square root is defined. Therefore, identify the domain by ensuring the expression under the square root is non-negative:
\[ x + 8 \geq 0 \]
Thus, the value of \( x \) must be greater than or equal to \(-8\).
Therefore, the solution is any \( x \geq -8 \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb0d79c4c-40ce-427b-b4a0-26ffd9f423cd%2Fc7bf6c9c-97e0-46f2-bdf1-fc82e3a927c8%2F7s8yd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Problem Statement:**
Let \( f(x) = \sqrt{x + 8} - 9 \) and \( g(x) = \sqrt{x + 8} - 9 \).
**Task:**
Solve \( f(x) = g(x) \).
**Solution Field:**
\( x = \) [Input Box]
**Action:**
[Submit Question Button]
**Explanation:**
In this problem, you're given two functions, \( f(x) \) and \( g(x) \), which are initially expressed as square root functions with the same form. You are then asked to find the values of \( x \) for which these two functions are equal, meaning:
\[ \sqrt{x + 8} - 9 = \sqrt{x + 8} - 9 \]
Note that since both functions are identical, this equation holds for any real number \( x \) for which the square root is defined. Therefore, identify the domain by ensuring the expression under the square root is non-negative:
\[ x + 8 \geq 0 \]
Thus, the value of \( x \) must be greater than or equal to \(-8\).
Therefore, the solution is any \( x \geq -8 \).
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