C) x = 7 or x = −7. Both 7² = 49 and (−7)² = 49. So x = ±7.

Solve: x² = 49

A x = 7 only

B x = −7 only

C x = 7 or x = −7

D x = 49

✓ Correct Answer: Option C

Both 7² = 49 and (−7)² = 49. So x = ±7.

💡 Why is C) the correct answer?

The correct answer to the question "Solve: x² = 49" is Option C: x = 7 or x = −7.

The other options — A) x = 7 only, B) x = −7 only, D) x = 49 — are incorrect for this ACT Exam Prep question. As explained above: Both 7² = 49 and (−7)² = 49. So x = ±7.

📚 About This ACT Exam Prep Practice Question

This 1-level ACT Exam Prep question from the Mathematics 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 ACT Exam Prep practice test or use flashcards for spaced repetition review.

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Solve: x² = 49

✓ Correct Answer: Option C

📚 About This ACT Exam Prep Practice Question

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