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|2-√2|-|1+√2| = 2 - √2 - 1 - √2 = 1 - 2√2
|1+√3|-|5-√3|= 1 + √3 - 5 + √3 = -4 + 2√3
|2-2√5|-|5+3√5|+|4-√5|-|10+√5| =
2 - 2√5 - 5 -3√5 + 4 - √5 - 10 - √5 =
- 7√5 + 16