AlgebraQuestion 466 of 550

Factor: x² - 9

  1. (x - 3)²
  2. (x - 3)(x + 3)
  3. (x + 3)²
  4. (x - 9)(x + 1)
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Correct answer: (x - 3)(x + 3)

This is a difference of two squares: x² - 3² = (x - 3)(x + 3).

Test structure: ETEC guide to the GAT

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Questions last reviewed: 21 October 2026