Question

A + b whole square minus 4 a b

Answer 1

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Answer 2

Answer:

a² + b² - 2 ab

STEP BY STEP EXPLANATION.

a² + b² - 2ab

a² + b²- 2ab - 2ab + 2ab.

( adding 2ab and - 2ab )

a² + b² - 4ab.

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