| 把下列各分式约分化简 (1)
|
(2)
|
(3)
| ||||||
(4)
|
(5)
|
(6)
| ||||||
(7)
|
(8)
|
(9)
| ||||||
(10)
|
(11)
|
(12)
|
| 30b |
| 27a |
| y2-x2 |
| x+y |
| y2+x2 |
| x+y |
| m2 |
| m |
| 2x+3 |
| x-3 |
| b |
| a |
| b2 |
| ( ) |
| a-b |
| a+b |
| ( ) |
| a2-b2 |
| x |
| x2+2x |
| x |
| x( ) |
| 1 |
| ( ) |
| 2-x |
| -x2+5 |
| ( ) |
| x2-5 |
| 2x2+2xy |
| x+y |
| 2x |
| ( ) |
| x2+2xy+y2 |
| x2-y2 |
| x+y |
| x-y |
| x+y |
| x-y |
| 2 |
| a-b |
| 2 |
| a-b |
| x+y |
| x-y |
| ( ) |
| x2-y2 |
| a+b |
| ( ) |
| a2+2ab+b2 |
| a2-b2 |
| ||||
|
| x+y |
| ( ) |
| x大 |
| x6 |
| 1 |
| x大 |
| 1 |
| x大 |
| -a+b |
| b-a |
| ax+ay |
| x2-y2 |
| a |
| x-y |
| a |
| x-y |
| a2-b2 |
| -a-b |