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radical din 2 ori radical din 2 - radical din 2 - radical din 2 +2

Răspuns :

√2×√2=2
2-√2-√2+2=2-2√2+2=4-2√2
√2 *√2-√2-√2+2=
2-2√2+2=
2+2-2√2
4-2√2
as simple as that!!!

dac ai cuimva ultimii 2 termeni sub acelasi radical, atunci:
√2*√2-√2-√(2+2)=
2-2√2-√4=
2-2√2-2=
2-2-2√2=
-2√2