Evaluate the expression: (4^2 - 3^2) + √121.

A 11

B 16

C 18

D 20

✓ Correct Answer: Option C

First, calculate exponents: 4^2 = 16 and 3^2 = 9. So, (16 - 9) = 7. Next, calculate the square root: √121 = 11. Finally, add the results: 7 + 11 = 18.

💡 Why is C) the correct answer?

The correct answer to the question "Evaluate the expression: (4^2 - 3^2) + √121." is Option C: 18.

The other options — A) 11, B) 16, D) 20 — are incorrect for this GED Exam Prep question. As explained above: First, calculate exponents: 4^2 = 16 and 3^2 = 9. So, (16 - 9) = 7. Next, calculate the square root: √121 = 11. Finally, add the results: 7 + 11 = 18.

📚 About This GED Exam Prep Practice Question

This 1-level GED Exam Prep question from the Mathematical Reasoning topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free GED Exam Prep practice test or use flashcards for spaced repetition review.

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Evaluate the expression: (4^2 - 3^2) + √121.

✓ Correct Answer: Option C

📚 About This GED Exam Prep Practice Question

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