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Sticky Note
(x − 3)² = ?
  1. x² − 9
  2. x² − 6x + 9
  3. x² + 6x + 9
  4. None of these
Explanation

Use formula: (a − b)² = a² − 2ab + b²

Here a = x, b = 3  

(x − 3)² = x² − 2(x)(3) + 3²  

= x² − 6x + 9


Last verified on 16-06-2026

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