m^2+n^2-2mn-1因式分解

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m^2+n^2-2mn-1因式分解m^2+n^2-2mn-1因式分解m^2+n^2-2mn-1因式分解原式=m²-2mn+n²-1=(m-n)²-1=(m-n-1)(m-

m^2+n^2-2mn-1因式分解
m^2+n^2-2mn-1因式分解

m^2+n^2-2mn-1因式分解
原式=m²-2mn+n²-1
=(m-n)²-1
=(m-n-1)(m-n+1)

原式=(m-n)²-1
=(m-n+1)(m-n-1)