(x平方-2x)平方+2x平方-4x+1
=x²(x-2)²+2x(x-2)+1
=[x(x-2)+1]²
=(x²-2x+1)²
=(x-1)^4;
很高兴为您解答,skyhunter002为您答疑解惑
如果本题有什么不明白可以追问,