Ответ:
Объяснение:
((a+b)²/ab)-((a-b)²/ab)=(a²+2ab+b²-(a²-2ab+b²))/ab=
=(a²+2ab+b²-a²+2ab-b²)/ab=4ab/ab=4.
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Ответ:
Объяснение:
((a+b)²/ab)-((a-b)²/ab)=(a²+2ab+b²-(a²-2ab+b²))/ab=
=(a²+2ab+b²-a²+2ab-b²)/ab=4ab/ab=4.