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2014-10-18T15:40:42+03:00
|√3-√5|=√5-√3|√5-√7|=√7-√5|√7-√3|=√7-√3√5-√3+√7-√5-√7-√3/simplificam +√7 cu -√7 s.a.m.d./=0
c)=√81-√27+2√3+√5+√27-√5=9-3√3+2√3+√5+3√3-√5=9-2√3
b)=(√12-2)-(√3+√2)+2(√3-√2)=(2√3-2)-(√3+√2)+(2√3-2√2)=√2+(2√3-2√2)=√3
d)=(√3+5)+(2√5-√3)+(10-√20)=(√3+5)+(√20-√3)+(10-√20)=5+10=15