初中数学教材二十一章复习题复习巩固1.当x是什么值时,下列各式在实数范围内有意义?(1)根号下3-x (2)1除以根号下2x-12.化简:(1)根号下500 (2)根号下12x(3)根号下4又三分之二(4)根号下3a的平方分
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![初中数学教材二十一章复习题复习巩固1.当x是什么值时,下列各式在实数范围内有意义?(1)根号下3-x (2)1除以根号下2x-12.化简:(1)根号下500 (2)根号下12x(3)根号下4又三分之二(4)根号下3a的平方分](/uploads/image/z/674450-26-0.jpg?t=%E5%88%9D%E4%B8%AD%E6%95%B0%E5%AD%A6%E6%95%99%E6%9D%90%E4%BA%8C%E5%8D%81%E4%B8%80%E7%AB%A0%E5%A4%8D%E4%B9%A0%E9%A2%98%E5%A4%8D%E4%B9%A0%E5%B7%A9%E5%9B%BA1.%E5%BD%93x%E6%98%AF%E4%BB%80%E4%B9%88%E5%80%BC%E6%97%B6%2C%E4%B8%8B%E5%88%97%E5%90%84%E5%BC%8F%E5%9C%A8%E5%AE%9E%E6%95%B0%E8%8C%83%E5%9B%B4%E5%86%85%E6%9C%89%E6%84%8F%E4%B9%89%3F%281%29%E6%A0%B9%E5%8F%B7%E4%B8%8B3-x+%282%291%E9%99%A4%E4%BB%A5%E6%A0%B9%E5%8F%B7%E4%B8%8B2x-12.%E5%8C%96%E7%AE%80%3A%281%29%E6%A0%B9%E5%8F%B7%E4%B8%8B500+++%282%29%E6%A0%B9%E5%8F%B7%E4%B8%8B12x%283%29%E6%A0%B9%E5%8F%B7%E4%B8%8B4%E5%8F%88%E4%B8%89%E5%88%86%E4%B9%8B%E4%BA%8C%284%29%E6%A0%B9%E5%8F%B7%E4%B8%8B3a%E7%9A%84%E5%B9%B3%E6%96%B9%E5%88%86)
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