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Ответ

Ответ дан
rs19990809

Ответ:

x1 =  - 1 \ x2 = 0.75

Объяснение:

 {x}^{2}  =  -  frac{x}{4}  + 0.75 \  {x}^{2}  +  frac{x}{4}  -  frac{3}{4}  = 0  | times 4 \ 4 {x}^{2}  + x - 3 = 0 \ d = 1 + 48 = 49 \ x1 =  frac{ - 1 - 7}{8}  =  - 1 \ x2 =  frac{ - 1 + 7}{2}  =  frac{3}{4}

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