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Efectuati calculele: 4*(√5-2√2)+3(7√5-4√2)-7(√2-3√5)


Răspuns :

4*(√5-2√2)+3(7√5-4√2)-7(√2-3√5)=4√5-8√2-21√5-12√2-7√2+21√5=4√5-27√2
4√5-8√2+21√5-12√2-7√2-21√5=4√5-27√2