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8x^(-1/3)*√y^(1/3)x^4√y^(2/3)
=8x^(-1/3)*y^[(1/3)*(1/2)]*x^2*y^[(2/3)*(1/2)*(1/2)]
=8x^[(-1/3)+2]*y^[(1/6)+(1/6)]
=8x^(5/3)*y^(1/3)
=8x^(1+2/3)*y^(1/3)
=8x乘以(x^2y)的开三次方
即你所求的答案。
a^m*a^n=a^(m+n) (m,n∈Z)
=8x^(-1/3)*y^[(1/3)*(1/2)]*x^2*y^[(2/3)*(1/2)*(1/2)]
=8x^[(-1/3)+2]*y^[(1/6)+(1/6)]
=8x^(5/3)*y^(1/3)
=8x^(1+2/3)*y^(1/3)
=8x乘以(x^2y)的开三次方
即你所求的答案。
a^m*a^n=a^(m+n) (m,n∈Z)
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