x^2n(x^2-2n-2x^1-2n+x^-2n)注:^是(多少次方)别误会如:2x^3y 别误会成3y别抄袭啊
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x^2n(x^2-2n-2x^1-2n+x^-2n)注:^是(多少次方)别误会如:2x^3y别误会成3y别抄袭啊x^2n(x^2-2n-2x^1-2n+x^-2n)注:^是(多少次方)别误会如:2x^
x^2n(x^2-2n-2x^1-2n+x^-2n)注:^是(多少次方)别误会如:2x^3y 别误会成3y别抄袭啊
x^2n(x^2-2n-2x^1-2n+x^-2n)
注:^是(多少次方)别误会如:2x^3y 别误会成3y
别抄袭啊
x^2n(x^2-2n-2x^1-2n+x^-2n)注:^是(多少次方)别误会如:2x^3y 别误会成3y别抄袭啊
答案是(x-1)^2
注意,2x^3y指的是2* x^3 * y; 你的意思,正确的写法是2x^(3y)
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