B) (x+3)(x-3). Difference of squares: a²-b² = (a+b)(a-b). x²-9 = (x+3)(x-3).

Factorize: x² - 9

A (x-3)(x-3)

B (x+3)(x-3)

C (x+9)(x-1)

D (x-1)(x+9)

✓ Correct Answer: Option B

Difference of squares: a²-b² = (a+b)(a-b). x²-9 = (x+3)(x-3).

💡 Why is B) the correct answer?

The correct answer to the question "Factorize: x² - 9" is Option B: (x+3)(x-3).

The other options — A) (x-3)(x-3), C) (x+9)(x-1), D) (x-1)(x+9) — are incorrect for this Mathematics question. As explained above: Difference of squares: a²-b² = (a+b)(a-b). x²-9 = (x+3)(x-3).

📚 About This Mathematics Practice Question

This 1-level Mathematics question from the Algebra topic is part of One Paper Preparation'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 Mathematics practice test or use flashcards for spaced repetition review.

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Factorize: x² - 9

✓ Correct Answer: Option B

📚 About This Mathematics Practice Question

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