3*√6 - (3/4)√6 - √6/4 - 2√6
=(3-3/4 -1/4 -2)√6
= 0 *√6
=0已经知道答案了，求过程3*(6^(1/2))-(3/4)*(6^(1/2))-((6^(1/2))/4)-2*(6^(1/2)) = 0