已知a=b=c求[2(a+b)]³[3(a+b)]³[4(a+b)]²[5(a+b)]²

已知a=b=c求[2(a+b)]³[3(a+b)]³[4(a+b)]²[5(a+b)]²

[2(a+b)]³[3(a+b)]³[4(a+b)]²[5(a+b)]²
=[4a]³*[6a]³*[8a]²[10a]²
=4³a³*6³a³*8²a²*10²a²
=4³6³8²10²*a的10次方