Photos 3.2 M

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3.2 m. 3mn-6n/2m 3. M2+n2-2mn. 2mn/m^3+n^3. M2-4mn+4n2.
3mn-6n/2m 3. M2+n2-2mn. 2mn/m^3+n^3. M2-4mn+4n2.

See also