x2-y2 |
a2x-a2y |
(x+y)2 |
ax+ay |
A.5 | B.-5 | C.
| D.-
|
x2-y2 |
a2x-a2y |
(x+y)2 |
ax+ay |
(x+y)(x-y) |
a2(x-y) |
a(x+y) |
(x+y)2 |
1 |
a |
1 |
a |
1 |
5 |
2x |
5x-3 |
3 | ||
25
|
x |
5x+3 |
| ||
-cd3 |
2a |
d3 |
c |
2a |
x2-2xy+y2 |
xy |
x2 |
x-y |
x2 |
y |
A.
| B.-
| C.-
| D.
|
-y |
2x |
3y |
4x |
-2x |
3y |
A.(
| B.(
| ||||||||
C.(
| D.(
|
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