a^n+2-10a^n+1+25a^n因式分解
问题描述：
a^n+2-10a^n+1+25a^n因式分解
答
a^n+2-10a^n+1+25a^n
=a^n(a^2-10a+25)
=a^n(a-5)^2;
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