Предмет: Алгебра, автор: aksenovandrej20799

Пж.Поиощь.Срочно , дою много.С решением

Приложения:

vlad97ua: Во второй скобке между a^2 и b наверное должен быть знак "умножить" вместо "плюс"...

vlad97ua: (в четвёртой скобке, я имел ввиду)

Ответы

Автор ответа: dobra888

Ответ: 2a⁶ ; 1/32 .

Объяснение:

( a² + b )( a⁴ - a²b + b² ) + ( a² - b )( a⁴ + a²b + b² ) = ( a²)³ + b³ + ( a²)³ - b³=

= ( a²)³ + ( a²)³ = a⁶ + a⁶ = 2a⁶ ;

якщо а = - 0,5 , b = 12,15 , то 2а⁶ = 2 * ( - 0,5 )⁶ = 2 * ( - 1/2 )⁶ = 2 * 1/64 = 1/32 .

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