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Ответ

Ответ дан
ZHAS0

x(x-4)=2+(x-1)²

x²-4x=2+x²-2x+1

-4x=2-2x+1

-4x=3-2x

-4x+2x=3

-2x=3

x= 3

- ____

2

Ответ

Ответ дан
marina23045

 {x}^{2}  - 4x = 2 +  {x }^{2}  + 1 - 2x \  {x}^{2}  -  {x}^{2}  - 4x + 2x = 2 + 1 \  - 2x = 3 \ x = 3 div ( - 2) \ x =  - 1.5

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