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  • Algebra and Factorization
  • Square of 9x – 7xy is
Multiple choice

Square of 9x – 7xy is

  1. 81x2 + 49x2y2

  2. 81x2 – 49x2y2

  3. 81x2 + 49x y2 – 126x2y

  4. 81x 2 + 49x2y2 – 63x2y

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Use identity

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