当x=2,b=-2时,求多项式3a³b³-二分之一a²b+b-(4a³b³-四分之一a²b-b²)+(a³b³+四分之一a²b)-2b²+3的值,甲做题时把a=2抄成了a=-2,乙没有抄错题,但他们得出的结
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![当x=2,b=-2时,求多项式3a³b³-二分之一a²b+b-(4a³b³-四分之一a²b-b²)+(a³b³+四分之一a²b)-2b²+3的值,甲做题时把a=2抄成了a=-2,乙没有抄错题,但他们得出的结](/uploads/image/z/701570-2-0.jpg?t=%E5%BD%93x%3D2%2Cb%3D-2%E6%97%B6%2C%E6%B1%82%E5%A4%9A%E9%A1%B9%E5%BC%8F3a%26%23179%3Bb%26%23179%3B-%E4%BA%8C%E5%88%86%E4%B9%8B%E4%B8%80a%26%23178%3Bb%2Bb-%EF%BC%884a%26%23179%3Bb%26%23179%3B-%E5%9B%9B%E5%88%86%E4%B9%8B%E4%B8%80a%26%23178%3Bb-b%26%23178%3B%EF%BC%89%2B%EF%BC%88a%26%23179%3Bb%26%23179%3B%2B%E5%9B%9B%E5%88%86%E4%B9%8B%E4%B8%80a%26%23178%3Bb%EF%BC%89-2b%26%23178%3B%2B3%E7%9A%84%E5%80%BC%2C%E7%94%B2%E5%81%9A%E9%A2%98%E6%97%B6%E6%8A%8Aa%3D2%E6%8A%84%E6%88%90%E4%BA%86a%3D-2%2C%E4%B9%99%E6%B2%A1%E6%9C%89%E6%8A%84%E9%94%99%E9%A2%98%2C%E4%BD%86%E4%BB%96%E4%BB%AC%E5%BE%97%E5%87%BA%E7%9A%84%E7%BB%93)
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