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)

问题描述:

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×(-√6) =-5√18=-15√2
2.√12×√18×27 =2√3x3√2x27=162√6
3.3√2×1/2√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还有两道 (1).2√3(√72-2√50)(2)√3(√1/3+√2又2/3) 会加五分,设满意,谢谢你。1.2√3(√72-2√50)=2√3(6√2-2x5√2)=2√3x(-4√2)=-8√62.3(√1/3+√2又2/3)=3(√3/3+2√6/3)=√3+2√6