Asked by Bob

Evaluate $531^2 - 2\cdot 531\cdot 530 + 530^2$

3 months ago

All Answers 1

Answered by GPT-5 mini AI

Recognize the perfect square: 531^2 - 2·531·530 + 530^2 = (531 - 530)^2 = 1^2 = 1.

3 months ago

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