2x+1 |
(x-3)(x+4) |
A |
x-3 |
1 |
x+4 |
A.2 | B.1 | C.-2 | D.-1 |
A |
x-3 |
1 |
x+4 |
A(x+4)+x-3 |
(x-3)(x+4) |
(A+1)x+4A-3 |
(x-3)(x+4) |
2x+1 |
(x-3)(x+4) |
|
x2 |
y-x |
y2 |
y-x |
1 |
x-3 |
x |
3-x |
2a2 |
a-2 |
8 |
2-a |
1 |
a-b |
1 |
a+b |
A.
| B.
| C.-
| D.-
|
1 |
f |
1 |
u |
1 |
v |
1 |
m+3 |
6 |
m2-9 |
A.
| B.m-3 | C.
| D.m+3 |
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