计算：（1）；（2）。-八年级数学

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• 计算-八年级数学
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• 化简：+（5-）=（）。-九年级数学
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• 计算：。-八年级数学
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• 计算：（1）=（）；（2）=（）。-八年级数学
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• （1）解下列不等式（组），并把解集在数轴上表示出来：①2x-2≤1+x；②；（2）计算：；（3）求x的值：4（x+1）2=81。-八年级数学
• 计算：（1）；（2）。-九年级数学
• 计算：-九年级数学
• 计算：=（）。-九年级数学
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• 计算：-八年级数学
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• 化简：①+﹣=（）；②=（）。-八年级数学
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• 计算：-九年级数学
• 计算：=（）。-八年级数学
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• 下列计算中，正确的[]A.B.C.D.-九年级数学
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• 计算：-九年级数学
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• 计算的结果是[]A.B.C.D.-九年级数学
• 计算：（）。-九年级数学
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