(√12x-√y/2-2√x/3)-2(√y/8-√18y)2a√3ab^2-b/6√27a^3+2ab√3/4a ,其中ab>0

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(√12x-√y/2-2√x/3)-2(√y/8-√18y)2a√3ab^2-b/6√27a^3+2ab√3/4a ,其中ab>0
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(√12x-√y/2-2√x/3)-2(√y/8-√18y)2a√3ab^2-b/6√27a^3+2ab√3/4a ,其中ab>0
(√12x-√y/2-2√x/3)-2(√y/8-√18y)

2a√3ab^2-b/6√27a^3+2ab√3/4a ,其中ab>0

(√12x-√y/2-2√x/3)-2(√y/8-√18y)2a√3ab^2-b/6√27a^3+2ab√3/4a ,其中ab>0
(√12x-√y/2-2√x/3)-2(√y/8-√18y)
=2√3X-(√2Y)/2-2(√3X)/3-(2/4)*√2Y+6√2Y
=√3X(2-2/3)+√2Y(6-1/2-2/4)
=(4/3)*√2X+5√2Y
2a√3ab^2-b/6√27a^3+2ab√3/4a
=2a*b* √3a-(b/6)*3a*√3a+2ab*(1/2)*√3a
=√3a(2ab-ab/2+ab)
=(5ab/2)*√3a