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2014-09-14T09:18:20+03:00
(3√5+1)³ = (3√5)³ +3·(3√5)² + 3·3√5 +1=135√5+135 + 9√5 +1 = 144√5 +136 (2+√3)³ = 2³ +3·2²·√3 + 3·2·(√3)² + (√3)³= 8 + 12√3 + 18 +3√3 =26 + 15√3