因式分解:a(x^2-2x)^2-2ax(2-x)+a
问题描述:
因式分解:a(x^2-2x)^2-2ax(2-x)+a
答
a(x^2-2x)^2-2ax(2-x)+a
=a[x^2(x-2)^2+2x(x-2)+1]
=a[x(x-2)+1]^2
=a(x^2-2x+1)^2
=a(x-1)^4