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2014-11-06T19:35:47+02:00
a.√2+√50-√32=√2+5√2-4√2=6√2-4√2=2√2
b.√3(3√3+4√3)=√3·7√3=7·3=21
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2014-11-06T19:44:18+02:00
A. √2+√50+√32=√2+50+32=√20
b. 
√3(√27+4√3)=√27= 3√3=3√3+4√3=7√3*√3=7 (deoarece radicalii comuni se omit)