题目内容
下列二次根式中,哪些是同类二次根式?
2
,
,-
,
,x
,3
,
,
2
|
| 75 |
1
|
| 3 |
|
|
| x | ||
3
|
| 1 |
| 3 |
| x3y |
2
=
,
=5
,-
=-
=-
,x
=
,3
=
,
=
,
=
x
,
∴2
,
,-
,
,
是同类二次根式.
x
,3
是同类二次根式.
|
| 2 |
| 3 |
| 3 |
| 75 |
| 3 |
1
|
|
| 3 |
| 4 |
| 3 |
|
| x |
| y |
| 2xy |
|
| 12 |
| xy |
| 2xy |
| x | ||
3
|
| x |
| 9 |
| 3 |
| 1 |
| 3 |
| x3y |
| 1 |
| 3 |
| xy |
∴2
|
| 75 |
1
|
| 3 |
| x | ||
3
|
x
|
|
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