Предмет: Алгебра, автор: nasiba1604

Упростите. 1) (x + y)³ + (x -y)³​

Ответы

Автор ответа: genius20
0

(x+y)^3+(x-y)^3=x^3+3x^2y+3xy^2+y^3+x^3-3x^2y+3xy^2-y^3=\\=2x^3+6xy^2

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