Ответ:
А)d/a2+1/a=d+a/a²
Б)x²-3xy/x²-y²-y/x-y=x²-3xy-xy-y²/(x-y)(x+y)=x²-2xy-y/(x-y)(x+y)
Объяснение:
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Ответ:
А)d/a2+1/a=d+a/a²
Б)x²-3xy/x²-y²-y/x-y=x²-3xy-xy-y²/(x-y)(x+y)=x²-2xy-y/(x-y)(x+y)
Объяснение: