Evaluate the expression 3a² - 2b when a = -2 and b = 5.

A -22

B 2

C 12

D 22

✓ Correct Answer: Option B

Substitute the values: 3(-2)² - 2(5). First, square -2: 3(4) - 2(5). Then multiply: 12 - 10. Finally, subtract: 2.

💡 Why is B) the correct answer?

The correct answer to the question "Evaluate the expression 3a² - 2b when a = -2 and b = 5." is Option B: 2.

The other options — A) -22, C) 12, D) 22 — are incorrect for this GED Exam Prep question. As explained above: Substitute the values: 3(-2)² - 2(5). First, square -2: 3(4) - 2(5). Then multiply: 12 - 10. Finally, subtract: 2.

📚 About This GED Exam Prep Practice Question

This 2-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 3a² - 2b when a = -2 and b = 5.

✓ Correct Answer: Option B

📚 About This GED Exam Prep Practice Question

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