Предмет: Алгебра, автор: sofiyasofien1977

Перетворіть вираз у многочлен:
(7х-4y) 2

sofiyasofien1977: (7х-4 y)

Ответы

Автор ответа: sofia000015
0

Ответ:

(7х-4у)2

2 (7х-4у)

(2*7х)-(2*4у)

відповідь: 14х-8у

Автор ответа: OblivionFire
1

Ответ:

(7х-4у)²=49х²-56ху+16у².

Объяснение:

По формуле квадрата разности:

(а-в)²=а²-2ав+в².

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