36m^2n^2-(9m^2+n^2)^2因式分解
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36m^2n^2-(9m^2+n^2)^2因式分解36m^2n^2-(9m^2+n^2)^2因式分解36m^2n^2-(9m^2+n^2)^2因式分解原式=(6mn)^2-(9m^2+n^2)^2=(
36m^2n^2-(9m^2+n^2)^2因式分解
36m^2n^2-(9m^2+n^2)^2因式分解
36m^2n^2-(9m^2+n^2)^2因式分解
原式=(6mn)^2-(9m^2+n^2)^2 =(6mn+9m^2+n^2)(6mn-9m^2-n^2) =-(9m^2+6mn+n^2)(9m^2-6mn+n^2) =-(3m+n)^2(3m-n)^2
(1),(-m-n)(-m+n) (2),(-m+n)(m-n)
(m-2n)(-m-n)
4m^2(m+n)-9n^2(m+n)
(m-n)^9乘(n-m)^8/(m-n)^2
36-5(m+n)-(m+n)^2
m-n+2n^2/(m+n)
(m-2n/n-m)-(n/m-n)=
2(m-n)²-m(m-n)
（m-n)(m+n)+(m+n)²-2m²
(m+2n)-6(m+2n)(2m-n)+9(n-2m) 因式分解
因式分解：(2n-m)^2-6(2n-m)(m+n)+9(m+n)^2
(3m-2n)^+(3m+2n) (3m-2n)-9(m+n)^
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（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
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