1 |
a-2 |
1 |
a+2 |
2 |
2-a |
1 |
a-2 |
1 |
a+2 |
2 |
2-a |
a+2-a+2 |
(a-2)(a+2) |
2-a |
2 |
4 |
(a-2)(a+2) |
2-a |
2 |
2 |
a+2 |
2 |
a+2 |
2 |
-1+2 |
a |
a-2 |
a |
a+2 |
a |
2-a |
a-1 |
a |
a2+2a |
a2-1 |
x2-16 |
x2+8x+16 |
x |
x-4 |
1 |
x2-16 |
2 |
a+1 |
a-1 |
a2+a |
a2-1 |
A.(
| B.(-0.1)-2=100 | ||||||||
C.
| D.
|
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