Предмет: Алгебра, автор: Аноним

Помогите ПОЖАЛУЙСТА 8 клас Спростіть вираз

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Автор ответа: kruglenkonata804

Объяснение:

=(а-3)(а-4)+(а-1)(а-4)+(а-1)(а-2)/(а-1)(а-2)(а-3)(а-4)= а^2-7а+12+а^2-5а+4+а^2-3а+2/(а-1)(а-2)(а-3)(а-4)=3а^2-15а+18/(а-1)(а-2)(а-3)(а-4)=3(а^2-5а+6)/(а-1)(а-2)(а-3)(а-4)=

=3(а-2)(а-3)/(а-1)(а-2)(а-3)(а-4)=3/(а-1)(а-4)

ответ: Б

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