M n mn 2mn mn m 2
![M n mn 2mn mn m 2. (n^2/m^3-mn^2+1/m-n)/(m/mn-n^2-(m+n)/(mn-m^2)). m2\m-n+m2n\]m2-2mn+n2. m+n/m-n-m2+n2/m2-n2. m+n/m^2n-m-n/m^2n+mn^2.](https://ru-static.z-dn.net/files/dd5/ef7d3941f178f5cd2718193dc742181d.jpg "(n^2/m^3-mn^2+1/m-n)/(m/mn-n^2-(m+n)/(mn-m^2)). m2\m-n+m2n\]m2-2mn+n2. m+n/m-n-m2+n2/m2-n2. m+n/m^2n-m-n/m^2n+mn^2.")
