(x²-2x)(x²-2x+2)+1
=(x²-2x)[(x²-2x)+2]+1
=(x²-2x)²+2(x²-2x)+1
=[(x²-2x)+1]²
=(x²-2x+1)²
=[(x-1)²]²
=(x-1)的4次方
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解:原式=(x²-2x)²+2(x²-2x)+1=(x²-2x+1)²=(x-1)^4
(x²-2x)(x²-2x+2)+1
=(x²-2x)[(x²-2x)+2]+1
=(x²-2x)²+2(x²-2x)+1
=[(x²-2x)+1]²
=(x²-2x+1)²
=[(x-1)²]²
=(x-1)的4次方
一位数学老师的忠告
<(x-1)2-1 > <(x-1)2+1>+1=
=[(x-1)^2-1]*[(x-1)^2+1]+1
=(x-1)^4-1+1
=(x-1)^4