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2√225-15√49+√10000;
2(√12-4(√3)-√108);


Răspuns :

2√225-15√49+√10000 =
=2*15-15*7+100 =
=30-105+100=
=25
2(√12-4√3-√108)=
2(4√3-4√3-6√3)=
=-12√3