高中数学计算求过程拜托拜托
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a^(4/3)-8a^(1/3)b=a^(1/3)(a-8b)
=a^(1/3)[(a^1/3)^3-(2b^1/3)^3]
=a^(1/3)(a^1/3-2b^1/3)(a^2/3+2a^1/3 b^1/3+4b^2/3)
1-2 b^(1/3)/a^1/3=(a^1/3-2b^1/3)/a^1/3
原式=a^(1/3)(a^1/3-2b^1/3)(a^2/3+2a^1/3 b^1/3+4b^2/3) /)(4b^2/3+2a^1/3 b^1/3+a^2/3)
*a^1/3/ *(a^1/3-2b^1/3)/ *a^1/3=a
=a^(1/3)[(a^1/3)^3-(2b^1/3)^3]
=a^(1/3)(a^1/3-2b^1/3)(a^2/3+2a^1/3 b^1/3+4b^2/3)
1-2 b^(1/3)/a^1/3=(a^1/3-2b^1/3)/a^1/3
原式=a^(1/3)(a^1/3-2b^1/3)(a^2/3+2a^1/3 b^1/3+4b^2/3) /)(4b^2/3+2a^1/3 b^1/3+a^2/3)
*a^1/3/ *(a^1/3-2b^1/3)/ *a^1/3=a
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