`1)` `M=(frac{0,4-frac{2}{9}+frac{2}{11}}{1,4-frac{7}{9}+frac{7}{11}}-frac{frac{1}{3}-0,25+frac{1}{5}}{1frac{1}{6}-0,875+0,7 }):frac{2012}{2013}` `2)` `Tìm` `x` `biết:` `|x^2+|x-1||= x^2+2`

2025-03-26 11:56:12

`1)` `M=(\frac{0,4-\frac{2}{9}+\frac{2}{11}}{1,4-\frac{7}{9}+\frac{7}{11}}-\frac{\frac{1}{3}-0,25+\frac{1}{5}}{1\frac{1}{6}-0,875+0,7 }):\frac{2012}{2013}` `2)` `Tìm` `x` `biết:` `|x^2+|x-1||= x^2+2`

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