(x平方-根号2x+1/3)平方
=(x²-√2x)²+ 2/3(x²-√2x)+1/9
=x^4-2√2x³+2x²+2/3x²-2√2/3x+1/9
=x^4-2√2x³+8/3x²-2√2/3x+1/9
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(x平方-根号2x+1/3)平方
=(x²-√2x)²+ 2/3(x²-√2x)+1/9
=x^4-2√2x³+2x²+2/3x²-2√2/3x+1/9
=x^4-2√2x³+8/3x²-2√2/3x+1/9
如果本题有什么不明白可以追问,如果满意请点击“选为满意答案”