a的4/3次方-8a的1/3次方b/[4b的2/3次方+2a的1/3次方+a的2/3次方][a的1/3次方-2b的1/3次方]

来源：学生作业学帮网编辑：学帮网时间：2024/05/04 10:44:09

a的4/3次方-8a的1/3次方b/[4b的2/3次方+2a的1/3次方b的1/3次方+a的2/3次方][a的1/3次方-2b的1/3次方]
=a^(1/3)(a-8b)/[4b^(2/3)+2a^(1/3)b^(1/3)+a^(2/3)][a^(1/3)-2b^(1/3)]
=a^(1/3)(a-8b)/(a-8b)
=a^(1/3)