Răspunsuri

2014-02-09T12:07:05+02:00
N=6+2radical18+3-radical18-radical9-radical18+2xradical36-2
n=6+2x3radical2+3-3radical2-9-3radical2+2x6-2
n=6=6radical2+3-3radical2-9-3radical2+12-2
n=10+radical2
2014-02-09T12:18:11+02:00
(√6+√3)^2=(√6)^2+2·√6·√3+√3)^2=6+2√18+3=9+2√9·√2=9+2·3√2=9+6√2;
Finalizare:9+6√2-√18-√9-√18+3√6=9+6√2-√9·√2-3-√9·√2+3√6-2=4+6√2-3√2-3√2+3√6=4+6√2-6√+3√6=4+3√6