Advanced Math practice question

Answer: 24

(a + b)² − (a − b)² = (a² + 2ab + b²) − (a² − 2ab + b²) = 4ab = 24.

Common wrong answers

If you answered 0

0 assumes the two squares are equal.

If you answered 6

6 is ab itself.

If you answered 12

12 is 2ab, counting the middle term once.

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