решено задание на фото\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
Ответ:
1)зростаюча
2)спадна
3)спадна
4)спадна
5)зростаюча
6)спадна
a)5(b-c)-c(b-c)=(5-c)(b-c)
б)b(x+y)-a(x+y)-3(x+y)=(b-a-3)(x+y)