Question

(V5+2V3).(V3+2V5)
O V significa o sinal da raiz quadrada ;D

Answer 1

Resposta:

$(\sqrt{5} +2\sqrt{3} )*(\sqrt{3} +2\sqrt{5} )=$

$=\sqrt{5*3} +2*5 +2*3+4*\sqrt{5*3} =$

$=\sqrt{15}+4\sqrt{15} +10+6=$

$=16+5\sqrt{15}$