please solve very urgent
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okay I am telling you please wait
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Step-by-step explanation:
(a+b)² - (a-b) ² - 4ab = ?
(a²+b²+2ab) - (a²+b²-2ab) - 4ab = ?
a²+b²+2ab - a² - b² + 2ab - 4ab
=0
(because a²,-a² and b²,-b² and 4ab, -4ab cancels)
HOPE THIS HELPS YOU
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