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What is the solution of [tex]\(\sqrt{x-4} + 5 = 2\)[/tex]?

A. [tex]\(x = -17\)[/tex]

B. [tex]\(x = 13\)[/tex]

C. [tex]\(x = 53\)[/tex]

D. no solution


Sagot :

To solve the equation [tex]\(\sqrt{x-4} + 5 = 2\)[/tex], we need to isolate the square root term and analyze if there is any possible value of [tex]\(x\)[/tex] that satisfies the equation. Let's go through the steps in detail:

1. Isolate the square root term:

[tex]\[ \sqrt{x-4} + 5 = 2 \][/tex]

Subtract 5 from both sides of the equation:

[tex]\[ \sqrt{x-4} = 2 - 5 \][/tex]

Simplify the right-hand side:

[tex]\[ \sqrt{x-4} = -3 \][/tex]

2. Analyze the result:

Here, we have [tex]\(\sqrt{x-4} = -3\)[/tex]. Recall that the square root of a real number is always non-negative. Therefore, there is no real number [tex]\(x\)[/tex] such that [tex]\(\sqrt{x-4}\)[/tex] would equal [tex]\(-3\)[/tex].

3. Conclusion:

Since it is impossible for the square root to be negative, there are no real values of [tex]\(x\)[/tex] that satisfy the equation [tex]\(\sqrt{x-4} + 5 = 2\)[/tex].

Thus, the correct answer is:

no solution