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[√8:(√2)la puterea 2-(√5)la puterea 2×√2]la puterea 2:2la puterea4

Răspuns :

√8=2√2
[2√2:2-5*√2]²:2 la 4=
(√2-5√2)²:2 la 4=
(2-25*2):16=
-48:16=-3