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  • Algebra and Factorization
  • Which of the following is correct?
Multiple choice

Which of the following is correct?

  1. (a-b)2 = a2 + 2ab – b2

  2. (a-b)2 = a2 -2ab + b2

  3. (a-b)2 = a2 – b2

  4. (a+b)2 = a2 + 2ab –b2

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

(a-b)2 = a2 – 2ab + b2

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