计算：(-6a^nb)^2·(3a^n-1b)=--------- -(-2ab^3)^2=-------------

学习时间:2026-08-15 22:53:27 阅读：8072

计算：(-6a^nb)^2·(3a^n-1b)=_________ -(-2ab^3)^2=_____________[-(-1/2)^2]^2=_____________

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2026-08-15 22:53:27

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(-6a^nb)^2*(3a^n-1b)=36a^2nb^2*3a^(n-1)b=108a^3n-1)b^3-(-2ab^3)^2=-4a^2b^6[-(-1/2)^2]^2=(-1/4)^2=1/16