Which of the following values of x makes the equation 2x−−√+13=27

true?(1 point)
Responses

49
49

16
16

9
9

25

1 answer

To solve the equation \( \sqrt{2x} + 13 = 27 \), we first isolate the square root term:

  1. Subtract 13 from both sides: \[ \sqrt{2x} = 27 - 13 \] \[ \sqrt{2x} = 14 \]

  2. Now square both sides to eliminate the square root: \[ 2x = 14^2 \] \[ 2x = 196 \]

  3. Divide both sides by 2 to solve for \( x \): \[ x = \frac{196}{2} \] \[ x = 98 \]

Now, let's check if any of the given options (49, 16, 9, 25) lead us back to \( x = 98 \):

  • For \( x = 49 \): \[ 2(49) = 98 \quad \text{and} \quad \sqrt{98} + 13 \neq 27 \]

  • For \( x = 16 \): \[ 2(16) = 32 \quad \text{and} \quad \sqrt{32} + 13 \neq 27 \]

  • For \( x = 9 \): \[ 2(9) = 18 \quad \text{and} \quad \sqrt{18} + 13 \neq 27 \]

  • For \( x = 25 \): \[ 2(25) = 50 \quad \text{and} \quad \sqrt{50} + 13 \neq 27 \]

None of the options provided make the equation true as they do not satisfy \( \sqrt{2x} + 13 = 27 \). Based on our working, the correct answer for \( x \) that satisfies \( \sqrt{2x} + 13 = 27 \) is \( x = 98 \).

It appears that no answer choices correspond to the solution of the original problem.

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