Ответ: [tex]23.9.[/tex]
Пошаговое объяснение:
[tex]\left \{ {{(5-x)^2-x(x+1)} \atop {x=\frac{1}{10}}} \right. \left \{ {{25-10x+x^2-x^2-x} \atop {x=\frac{1}{10}}} \right. \left \{ {{25-11x} \atop {x=\frac{1}{10}}} \right.\\\\ 25-11*\frac{1}{10}=25-\frac{11}{10}=\frac{250-11}{10}=\frac{239}{10}=23.9[/tex]
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Ответ: [tex]23.9.[/tex]
Пошаговое объяснение:
[tex]\left \{ {{(5-x)^2-x(x+1)} \atop {x=\frac{1}{10}}} \right. \left \{ {{25-10x+x^2-x^2-x} \atop {x=\frac{1}{10}}} \right. \left \{ {{25-11x} \atop {x=\frac{1}{10}}} \right.\\\\ 25-11*\frac{1}{10}=25-\frac{11}{10}=\frac{250-11}{10}=\frac{239}{10}=23.9[/tex]