Ответ 2)
1) x(x-2)=0
x1= 0 x2=2
2) (x+2)²=0
x= -2
3) x≠-2
(x-2)(x+2)/(x+2)=0
x=2
4) 2x+1=0
x= -1/2
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Ответ 2)
1) x(x-2)=0
x1= 0 x2=2
2) (x+2)²=0
x= -2
3) x≠-2
(x-2)(x+2)/(x+2)=0
x=2
4) 2x+1=0
x= -1/2