当x=-2,y=2/3时,求kx-2(x-1/3y^2)+(-3/2x+1/3y^2)的值,一同学做题时,错把x=-2看成x=2,但结果正确,求k的当x=-2,y=2/3时,求kx-2(x-1/3y^2)+(-3/2x+1/3y^2)的值,一同学做题时,错把x=-2看成x=2,但结果正确,且计算过程无误
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![当x=-2,y=2/3时,求kx-2(x-1/3y^2)+(-3/2x+1/3y^2)的值,一同学做题时,错把x=-2看成x=2,但结果正确,求k的当x=-2,y=2/3时,求kx-2(x-1/3y^2)+(-3/2x+1/3y^2)的值,一同学做题时,错把x=-2看成x=2,但结果正确,且计算过程无误](/uploads/image/z/5296710-30-0.jpg?t=%E5%BD%93x%3D-2%2Cy%3D2%2F3%E6%97%B6%2C%E6%B1%82kx-2%28x-1%2F3y%5E2%29%2B%28-3%2F2x%2B1%2F3y%5E2%29%E7%9A%84%E5%80%BC%2C%E4%B8%80%E5%90%8C%E5%AD%A6%E5%81%9A%E9%A2%98%E6%97%B6%2C%E9%94%99%E6%8A%8Ax%3D-2%E7%9C%8B%E6%88%90x%3D2%2C%E4%BD%86%E7%BB%93%E6%9E%9C%E6%AD%A3%E7%A1%AE%2C%E6%B1%82k%E7%9A%84%E5%BD%93x%3D-2%2Cy%3D2%2F3%E6%97%B6%2C%E6%B1%82kx-2%28x-1%2F3y%5E2%29%2B%28-3%2F2x%2B1%2F3y%5E2%29%E7%9A%84%E5%80%BC%2C%E4%B8%80%E5%90%8C%E5%AD%A6%E5%81%9A%E9%A2%98%E6%97%B6%2C%E9%94%99%E6%8A%8Ax%3D-2%E7%9C%8B%E6%88%90x%3D2%2C%E4%BD%86%E7%BB%93%E6%9E%9C%E6%AD%A3%E7%A1%AE%2C%E4%B8%94%E8%AE%A1%E7%AE%97%E8%BF%87%E7%A8%8B%E6%97%A0%E8%AF%AF)
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