Multiple choice general knowledge math & puzzles

(A+B)^2

  1. A^2 + B^2 + 2xAxB

  2. A^2 + B^2 - 2xAxB

  3. A^2 + B^2

  4. NO IDEA
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The square of a binomial (A+B)^2 is calculated as (A+B)(A+B) = A^2 + AB + BA + B^2, which simplifies to A^2 + B^2 + 2AB. Option 407806 is the standard mathematical identity.

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