因式分解:(m-n)²-(2n-m)²
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因式分解:(m-n)²-(2n-m)²
因式分解:(m-n)²-(2n-m)²
因式分解:(m-n)²-(2n-m)²
(m-n)^2-(2n-m)^2
=(m-n加2n-m)×(m-n-2n加m)
=n×(2m-3n)
=2mn-3n^2
答:
(m-n)²-(2n-m)²
=(m-n+2n-m)*[(m-n)-(2n-m)]
=n*(2m-3n)