王老师在课堂上出了下面一道题:求当x=-2012,y=-2013时式子3x^2-4x^3y^2+3x^2y+2x^2+4x^3y^2+2x^2y-5x^2-5x^2y+x-y+1的值.当很多同学用计算器计算时,刘小龙却很快就举手,已求出了这个式子的值,你知道刘小龙
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![王老师在课堂上出了下面一道题:求当x=-2012,y=-2013时式子3x^2-4x^3y^2+3x^2y+2x^2+4x^3y^2+2x^2y-5x^2-5x^2y+x-y+1的值.当很多同学用计算器计算时,刘小龙却很快就举手,已求出了这个式子的值,你知道刘小龙](/uploads/image/z/544948-52-8.jpg?t=%E7%8E%8B%E8%80%81%E5%B8%88%E5%9C%A8%E8%AF%BE%E5%A0%82%E4%B8%8A%E5%87%BA%E4%BA%86%E4%B8%8B%E9%9D%A2%E4%B8%80%E9%81%93%E9%A2%98%3A%E6%B1%82%E5%BD%93x%3D-2012%2Cy%3D-2013%E6%97%B6%E5%BC%8F%E5%AD%903x%5E2-4x%5E3y%5E2%2B3x%5E2y%2B2x%5E2%2B4x%5E3y%5E2%2B2x%5E2y-5x%5E2-5x%5E2y%2Bx-y%2B1%E7%9A%84%E5%80%BC.%E5%BD%93%E5%BE%88%E5%A4%9A%E5%90%8C%E5%AD%A6%E7%94%A8%E8%AE%A1%E7%AE%97%E5%99%A8%E8%AE%A1%E7%AE%97%E6%97%B6%2C%E5%88%98%E5%B0%8F%E9%BE%99%E5%8D%B4%E5%BE%88%E5%BF%AB%E5%B0%B1%E4%B8%BE%E6%89%8B%2C%E5%B7%B2%E6%B1%82%E5%87%BA%E4%BA%86%E8%BF%99%E4%B8%AA%E5%BC%8F%E5%AD%90%E7%9A%84%E5%80%BC%2C%E4%BD%A0%E7%9F%A5%E9%81%93%E5%88%98%E5%B0%8F%E9%BE%99)
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