Photos M3 N2

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M3 n2. 3m-2n. M*(M-2)+5m^2*(1-3m)=. (2m+n)(2m-n). N+3/N.
3m-2n. M*(M-2)+5m^2*(1-3m)=. (2m+n)(2m-n). N+3/N.

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