Предмет: Алгебра, автор: polinayu00

Найдите значения выражения:
(5b+1) в квадрате-10b(2b+1)
если при b= 29 под корнем

Ответы

Автор ответа: zaznailka666

0

Раскрываем первую скобку(по правилу сокращенного умножения):25b2+10b+1-20b2-10b
Считаем подобные:
5b2+1
Подставляем(корень у 29 пропалает из-за возведения в квадрат)
=>5*29+1=145+1=146

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