Предмет: Математика, автор: 3459054

Помогите разложить на множители

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Автор ответа: Vmatushina

1) а^2-49=(а-7) (а+7)
по формуле разности квадратов
все остальное так же
3) с2-2, 25=(с-1, 5) (с+1, 5)
5) (8/9-х) (8/9+х)
7) (z-13/14) (z+13/14)
9) (5x-6) (5x+6)
11) (0.8-1/3z) (0.8+1/3z)

думаю, дальше сам(а) справишься

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