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Desfaceti parantezele: (a-b)(a²+ab+b²)..

Răspuns :

Renatemambouko
(a-b)(a²+ab+b²)=a³-a²b+a²b-ab²+ab²-b³=a³-b³
StefFreek482
(a-b)(a²+ab+b²)=>(a-b)(a+b)²=>(a²-b²)²