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erik [133]
3 years ago
11

Identify all of the solutions of _______

Mathematics
2 answers:
I am Lyosha [343]3 years ago
6 0

the answer is the third, you can substitute the option to verify the solution

Mariulka [41]3 years ago
5 0

Answer:

<em>x = 8 and x = 9</em>

Step-by-step explanation:

\sqrt{x - 8} + 8 = x

Isolate the radical and square both sides.

\sqrt{x - 8} = x - 8

(\sqrt{x - 8})^2 = (x - 8)^2

x - 8 = x^2 - 16x + 64

x^2 - 17x + 72 = 0

(x - 8)(x - 9) = 0

x - 8 = 0~~~or~~~x - 9 = 0

x = 8~~~or~~~x = 9

Since squaring both sides may introduce extraneous solutions, we check both of our solutions in the original equation.

Check x = 8:

\sqrt{8 - 8} + 8 = 8

\sqrt{0} + 8 = 8

0 + 8 = 8

8 = 8

8 = 8 is a true statement, so x = 8 is a solution.

Check x = 9:

\sqrt{9 - 8} + 8 = 9

\sqrt{1} + 8 = 9

1 + 8 = 9

9 = 9

9 = 9 is a true statement, so x = 9 is a solution.

Answer: x = 8 and x = 9

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\boxed{d-4

<h2>Explanation:</h2>

Hello! Recall you need to write complete questions in order to find exact answers. So in this problem I'll assume the question is:

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<em />

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