🎯 SAT Exam Prep

Simplify: √(x²) for all real x

A x
B |x|
C x²
D ±x

✓ Correct Answer: Option B

√(x²) = |x| because the square root function returns the non-negative value.

💡 Why is B) the correct answer?

The correct answer to the question "Simplify: √(x²) for all real x" is Option B: |x|.

The other options — A) x, C) x², D) ±x — are incorrect for this SAT Exam Prep question. As explained above: √(x²) = |x| because the square root function returns the non-negative value.

📚 About This SAT Exam Prep Practice Question

This 2-level SAT Exam Prep question from the Math (No Calculator) 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 SAT Exam Prep practice test or use flashcards for spaced repetition review.

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