(x^4n/x^2n)*x^n
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(x^4n/x^2n)*x^n(x^4n/x^2n)*x^n(x^4n/x^2n)*x^n同底数幂相除则指数相减,相乘是指数相加所以原式=x^(4n-2n+n)=x^3nx^(4n-2n+n)=x^3
(x^4n/x^2n)*x^n
(x^4n/x^2n)*x^n
(x^4n/x^2n)*x^n
同底数幂
相除则指数相减,相乘是指数相加
所以原式=x^(4n-2n+n)=x^3n
x^(4n-2n+n)=x^3n
(x^4n/x^2n)*x^n
=x^(4n-2n)*x^n
=x^2n*x^n
=x^3n
(x^4n/x^2n)*x^n
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