请化简(1).5√3×(-√6) (2).√12×√18×27 (3)3√2×1/2√6÷√8 (4)√1又3/5×2√3×(-1/2√10)


1.5√3×(-√察丛6) =-5√18=-15√2

2.√败配樱12×√18×27 =2√3x3√2x27=162√6
3.3√2×1/卖姿2√6÷√8 =√3/2÷2√2=√6/8
4.√(8/5)x2√3x(-1/2√10)=-2√10/5x2√3x1/(2√10)=2√3/5