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Calculati |5-√5|+|2-√5|-|√20-3|-|6-2√5|=
Ajutatima varog


Răspuns :

|5-√5|+|2-√5|-|√20-3|-|6-2√5|=
(5-
√5)+(√5-2)-(√20-3)-(2√5-6)=
5-
√5+√5-2-√20+3 -2√5 +6=
12-
√20-2√5=
12- 2
√5-2√5 = 12-4√5