(2m+n)^2(2m-n)^2[(2m+n)^2][(2m-n)^2]

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(2m+n)^2(2m-n)^2[(2m+n)^2][(2m-n)^2]

(2m+n)^2(2m-n)^2[(2m+n)^2][(2m-n)^2]
(2m+n)^2(2m-n)^2
[(2m+n)^2][(2m-n)^2]

(2m+n)^2(2m-n)^2[(2m+n)^2][(2m-n)^2]
(2m+n)^2(2m-n)^2
=[(2m+n)(2m-n)]^2
=(4m²-n²)²
=16m⁴-8m²n²+n⁴

[(2m+n)^2][(2m-n)^2]
=[(2m+n)(2m-n)]^2
=(4m^2-n^2)^2
=16m^4-8m^2n^2+n^4

(1),(-m-n)(-m+n) (2),(-m+n)(m-n) (m-2n)(-m-n) 2(m-n)²-m(m-n) （m-n)(m+n)+(m+n)²-2m² m-n+2n^2/(m+n) (m-2n/n-m)-(n/m-n)= mn(m-n)-m(n-m)²2m(m-n)(2n-m)求过程 计算m+2m/n-m + n/m-n - 2m/n-m 计算m+2n/n-m+n/m-n-2m/n-m 分式加减法：化简：2m/m-n-n/n-m+m+2n/n-m 计算2m-n/n-m+m/m-n+n/n-m 计算：2m-n／n-m+m／m-n+n/n-m 计算m+2n/n-m+n/m-n-2n/n-m （m-n)+2n（m-n)（m-n)的平方+2n（m-n)因式分解 [(m+n)(m-n)-(m-n)²+2n(m-n)]÷4n 4m(m-m)-2n(n-m) (n/m+n/2m^2)*4m/n^2 m/(m-n)^2-n/(n-m)^2