-2/3√a^3b*√9ab*1/√8ab(a>0,b>0)
问题描述:
-2/3√a^3b*√9ab*1/√8ab(a>0,b>0)
注:a^3b是a的三次方b
答
-2/3√a^3b*√9ab*1/√8ab(a>0,b>0)
=-2/3×√﹙a³b×9ab÷8ab)
=-2/3×3/4×a√2b
=-a√﹙2b﹚/4