已知 |x-3|+(a+2)²=0 求代数式1/3(3ax²-ax+3)-(ax²-1/2ax-1)的值求证:代数式7a³-6a³b+3a³b+3+3a³+6a³b-3a²b-10a³-7的值与a,b的值无关
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![已知 |x-3|+(a+2)²=0 求代数式1/3(3ax²-ax+3)-(ax²-1/2ax-1)的值求证:代数式7a³-6a³b+3a³b+3+3a³+6a³b-3a²b-10a³-7的值与a,b的值无关](/uploads/image/z/121398-6-8.jpg?t=%E5%B7%B2%E7%9F%A5+%7Cx-3%7C%2B%28a%2B2%29%26%23178%3B%3D0++%E6%B1%82%E4%BB%A3%E6%95%B0%E5%BC%8F1%2F3%EF%BC%883ax%26%23178%3B-ax%2B3%29-%28ax%26%23178%3B-1%2F2ax-1%29%E7%9A%84%E5%80%BC%E6%B1%82%E8%AF%81%EF%BC%9A%E4%BB%A3%E6%95%B0%E5%BC%8F7a%26%23179%3B-6a%26%23179%3Bb%2B3a%26%23179%3Bb%2B3%2B3a%26%23179%3B%2B6a%26%23179%3Bb-3a%26%23178%3Bb-10a%26%23179%3B-7%E7%9A%84%E5%80%BC%E4%B8%8Ea%2Cb%E7%9A%84%E5%80%BC%E6%97%A0%E5%85%B3)
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