Предмет: Алгебра, автор: соф2345

помогите решить каждое неравенство

Приложения:

Ответы

Автор ответа: maksimcat

1)a²-5a+6≠(a-3)(a+2)
a²-5a+6≠a²-3a+2a-6
a²-5a+6≠a²-a-6

2)(b+2)(3-a)=-(a-3)(2+b)
верное равенство

3)16-a²=(4-a)(4+a)
верное равенство

4)(a+5)(3-a)=-2a+15-a²
3a+15-a²-5a=-2a+15-a²
-a²-2a+15=-2a+15-a²
верное равенство

ответ: верные равенства:2),3),4)

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