由同类二次根式的概念得：5x+2=8-x
解得x=1，
故答案为：1．
若最简二次根式5x+2与8−x是同类二次根式，则x=_．
若最简二次根式
与
是同类二次根式，则x=______．
| 5x+2 |
| 8−x |
数学人气：622 ℃时间：2020-04-07 12:01:54
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