6a^5b^4÷(4ab)^2+(-1/8ab)(-5a^2b)计算

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6a^5b^4÷(4ab)^2+(-1/8ab)(-5a^2b)计算
6a^5b^4÷(4ab)^2+(-1/8ab)(-5a^2b)计算

6a^5b^4÷(4ab)^2+(-1/8ab)(-5a^2b)计算
=3/8a^3b^2+5/8a^3b^2
=a^3b^2