Factor: x² − 9

A (x − 3)(x + 3)

B (x − 9)(x + 1)

C (x − 3)²

D x(x − 9)

✓ Correct Answer: Option A

x² − 9 is a difference of squares: a² − b² = (a − b)(a + b), where a = x and b = 3.

💡 Why is A) the correct answer?

The correct answer to the question "Factor: x² − 9" is Option A: (x − 3)(x + 3).

The other options — B) (x − 9)(x + 1), C) (x − 3)², D) x(x − 9) — are incorrect for this SAT Exam Prep question. As explained above: x² − 9 is a difference of squares: a² − b² = (a − b)(a + b), where a = x and b = 3.

📚 About This SAT Exam Prep Practice Question

This 1-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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Factor: x² − 9

✓ Correct Answer: Option A

📚 About This SAT Exam Prep Practice Question

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