( a-b) ² answer pls tell
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Step-by-step explanation:
(a-b)² = a²+b²-2ab
ie (a-b) × (a-b) = a²-ab-ba+b²
=a²-2ab+b²
answer is: a²+b²-2ab
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( a-b) ² = (a-b) (a-b) ........................
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