Предмет: Математика, автор: ans666

2x-(X+1)^2=3x^2-5
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Автор ответа: igortym777
0
2x-x^2-2x-1=3x^2-5
-4x^2+4=0
-4x^2=- 4
x^2=1
x1=1      x2=-1
Отв: 1; -1
Автор ответа: ans666
0
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