Get reliable answers to your questions at Westonci.ca, where our knowledgeable community is always ready to help. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Get precise and detailed answers to your questions from a knowledgeable community of experts on our Q&A platform.

9. The value of [tex] x [/tex] in [tex] \sqrt{x+2}=3 [/tex] is

a. 9
b. 7
c. 6
d. 5

Sagot :

To solve the equation [tex]\(\sqrt{x+2} = 3\)[/tex] for the value of [tex]\(x\)[/tex], follow these steps:

1. Isolate the square root: The square root is already isolated in the given equation [tex]\(\sqrt{x + 2} = 3\)[/tex].

2. Square both sides: To eliminate the square root, square both sides of the equation.
[tex]\[ (\sqrt{x + 2})^2 = 3^2 \][/tex]
This simplifies to:
[tex]\[ x + 2 = 9 \][/tex]

3. Solve for [tex]\(x\)[/tex]: Subtract 2 from both sides of the equation to find the value of [tex]\(x\)[/tex].
[tex]\[ x + 2 - 2 = 9 - 2 \][/tex]
Simplifying this yields:
[tex]\[ x = 7 \][/tex]

Therefore, the value of [tex]\(x\)[/tex] is 7.

The correct answer is [tex]\( \boxed{7} \)[/tex].
b. 7 is the correct answer