Question

(x+1,2)(x+5)(x+5)(x-10)=0

Answer 1

x + 1,2 = 0
x = - 1,2

x + 5 = 0 
x = - 5

x + 5 = 0 
x = - 5

x - 10  = 0
x = 10


ОТВЕТ
- 5; - 1,2; 10