(3a^2b0+(8a^6b^3)/(-2a^2b)

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(3a^2b0+(8a^6b^3)/(-2a^2b)(3a^2b0+(8a^6b^3)/(-2a^2b)(3a^2b0+(8a^6b^3)/(-2a^2b)(3a^2b)+(8a^6b^3)/(-2a

(3a^2b0+(8a^6b^3)/(-2a^2b)
(3a^2b0+(8a^6b^3)/(-2a^2b)

(3a^2b0+(8a^6b^3)/(-2a^2b)
(3a^2b)+(8a^6b^3)/(-2a^2b)
=(3a^2b)+(8a^6b^3)/(-2a^2b)
=-3/2-4a^4b^2

原式
=3a^2b+8/(-2)*a^(6-2)b^(3-1)
=3a^2b-4a^4b^2
=a^2b(3-4a^2b)

原式=-3/2+(-4)a^4b^2
上下分开再利用a^m÷a^n=a^(m-n)即可