Предмет: Алгебра, автор: mzaitsevnn

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Помогите решить задание по алгебре

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Автор ответа: igorsytnyk179
1

Ответ:

1) (0,8t +12s)² = (0,8t)² + 2(0,8t*12s) + (12s)² = 0,64t² + 19,2ts + 144s²

2) (1/8 ·z⁴ -3/4)²=(1/8 ·z⁴)²-2·1/8 ·z⁴·3/4 +(-3/4)²=1/64 ·z⁸-3/16 ·z⁴ +9/16

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