b+c |
-a |
-(b+c) |
a |
-z |
-x2y |
z |
x2y |
1-x |
x-y |
x-1 |
x-y |
2x-3y |
3x-2y |
3x-2y |
2y-3x |
b+c |
-a |
-(b+c) |
a |
-z |
-x2y |
z |
x2y |
1-x |
x-y |
x-1 |
x-y |
2x-3y |
3x-2y |
3x-2y |
2y-3x |
x-y |
x |
2 |
3 |
x+y |
x |
2(x+1) |
x-1 |
1 |
x |
1 |
y |
2x-xy+2y |
3x+5xy+3y |
2x-3y+6z |
3x-2y+4z |
12xy3 |
-9x2y2 |
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