Răspuns :
= 2R3( 5 - 1) + 4x3 - 20R3 +25 + 9x3 + 12R3 +4 =
8R3 + 12 - 20R3 + 25 + 27 + 12R3 + 4 = 12 + 25 +27 + 4 = 68
8R3 + 12 - 20R3 + 25 + 27 + 12R3 + 4 = 12 + 25 +27 + 4 = 68
2√3(√5-1)(√5+1)+(2√3-5)²+(3√3+2)²=
2√3(5-1)+12-20√3+25+27+12√3+4=
8√3+68-8√3=
68
2√3(5-1)+12-20√3+25+27+12√3+4=
8√3+68-8√3=
68