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2√2x(√6-√10)-4√3+4√5.... Va rog!!

Răspuns :

2√2×(√6-√10)-4√3+4√5=
=2√12-2√20-4√3+4√5
=2*2√3-2*2√5-4√3+4√5
=4√3-4√5-4√3+4√5
=0 (termeni se reduc)