y |
7x |
2 |
x |
a-2 |
a-1 |
2a-3 |
a-1 |
12 |
m2-9 |
2 |
m-3 |
x2 |
x-1 |
y |
7x |
2 |
x |
y |
7x |
x |
2 |
y |
14 |
a-2-(2a-3) |
a-1 |
a-2-2a+3 |
a-1 |
-a+1 |
a-1 |
-(a-1) |
a-1 |
12 |
(m-3)(m+3) |
2(m+3) |
(m-3)(m+3) |
12-(2m+6) |
(m-3)(m+3) |
-2m+6 |
(m-3)(m+3) |
-2(m-3) |
(m-3)(m+3) |
2 |
m+3 |
x2 |
x-1 |
(x-1)2 |
x-1 |
x2-(x2-2x+1) |
x-1 |
x2-x2+2x-1 |
x-1 |
2x-1 |
x-1 |
a |
a-b |
a2 |
a2-2ab+b2 |
a |
a+b |
a2 |
a2-b2 |
1 |
x-1 |
2 |
x2-1 |
x+2 |
x2-2x |
x-1 |
x2-4x+4 |
x-4 |
x |
1 | ||
2-
|
1 |
a |
1 |
b |
A.1 | B.-1 | C.
| D.
|
1 |
x+1 |
1 |
x-1 |
2 |
1-x |
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