楼主是个傻*B,
就采纳几个人的答案。
属于典型的作弊,楼上的几位可能悲剧了。
x^4+4x^3+6x^2+4x+1
=(x^4+4x³+3x²)+(3x²+4x+1)
=x²(x²+4x+3)+(x+1)(3x+1)
=x²(x+1)(x+3)+(x+1)(3x+1)
=(x+1)(x³+3x²+3x+1)
=(x+1)[(x³+1)+(3x²+3x)]
=(x+1)[(x+1)(x²-x+1)+3x(x+1)]
=(x+1)(x+1)(x²-x+1+3x)
=(x+1)²(x²+2x+1)
=(x+1)²(x+1)²
=(x+1)^4
x^4+4x^3+6x^2+4x+1
=x^4+4x^3+4x^2+2x^2+4x+2-1
=x^2(x^2+4x+4)+2(x^2+2x+1)-1
=x^2(x+2)^2+2(x+1)^2-1
(x+1)^4