| m2+n2 |
| (m+n)2 |
| 2 |
| mn |
| (m+n)2 |
| (mn)2 |
| 1 |
| m−n |
=[
| m2+n2 |
| (m+n)2 |
| 2 |
| mn |
| (mn)2 |
| (m+n)2 |
| 1 |
| m−n |
=
| (m−n)2 |
| (m+n)2 |
| 1 |
| m−n |
=
| m−n |
| (m+n)2 |
把m-n=
| 1 |
| 4 |
原式=
| 1 |
| 16 |
| 1 |
| 4 |
| m2+n2 |
| m2+2mn+n2 |
| 2 |
| mn |
| 1 |
| m |
| 1 |
| n |
| 1 |
| m−n |
| m2+n2 |
| (m+n)2 |
| 2 |
| mn |
| (m+n)2 |
| (mn)2 |
| 1 |
| m−n |
| m2+n2 |
| (m+n)2 |
| 2 |
| mn |
| (mn)2 |
| (m+n)2 |
| 1 |
| m−n |
| (m−n)2 |
| (m+n)2 |
| 1 |
| m−n |
| m−n |
| (m+n)2 |
| 1 |
| 4 |
| 1 |
| 16 |