Matematică

va rog frumos urgent ex 7 ,8 dau 100 puncte si coroana


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draguta1inteligenta

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7)a)=4y b)=-2xy³ /3 c)=-a³/20 d)=14a³b⁴/5 8)a)=4a⁶b² b)=81x⁴y⁸ c)=x¹⁵y³/27 d)=a⁴b²⁰/66

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