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ajutatima va rog urgent
3radical20-3radical45+4radical5
vriau raspunsul pe lung


Răspuns :

3radical20-3radical45+4radica5 =6radical5-9radical5+4radical5 = 1radical5
3√4x5-3√9x5+4√5=
3x2√5-3x3√5+4√5=
6√5-8√5+4√5=
2√5