Ответ:
1.)-0,5x^2+2x-2=0
-x^2+4x-4=0
x^2-4x+4=0
(x-2)^2=0
x-2=0
x=2
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Answers & Comments
Ответ:
1.)-0,5x^2+2x-2=0
-x^2+4x-4=0
x^2-4x+4=0
(x-2)^2=0
x-2=0
x=2