1 |
x |
1 |
y |
5x+xy-5y |
x-xy-y |
1 |
x |
1 |
y |
y-x |
xy |
5x+xy-5y |
x-xy-y |
5(x-y)+xy |
(x-y)-xy |
-15xy+xy |
-3xy-xy |
-14xy |
-4xy |
7 |
2 |
7 |
2 |
ab |
a+b |
1 |
6 |
bc |
b+c |
1 |
8 |
ca |
c+a |
1 |
10 |
abc |
ab+bc+ca |
1 |
a |
1 |
b |
1 |
a+b |
a |
b |
b |
a |
A.1 | B.-1 | C.2 | D.-2 |
5 |
x-2 |
x-3 |
x-2 |
5 |
2x+3 |
x |
x2-9 |
x |
1 |
2 |
x2-9 |
x2+6x+9 |
3x3+9x2 |
x2-3x |
1 |
3 |
2x |
x3+2x2+x |
x-1 |
x2+x |
4x2-1 |
2-4x |
4x2+4x+1 |
x |
1 |
4 |
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