㏒3的12+㏒3的36+2㏒3的4lg4/5+2lg5√5算出于答案有出入本人答案是3+8log3的2,2lg2-lg5
㏒3的12+㏒3的36+2㏒3的4和lg4/5+2lg5√5与答案有出入本人答案是3+8log3的2,2lg2-lg5