已知二项式中3xy+4与x-kx^2y(k为不等零的常数)的乘积不含有x^2y项,求K的值?
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![已知二项式中3xy+4与x-kx^2y(k为不等零的常数)的乘积不含有x^2y项,求K的值?](/uploads/image/z/6853544-8-4.jpg?t=%E5%B7%B2%E7%9F%A5%E4%BA%8C%E9%A1%B9%E5%BC%8F%E4%B8%AD3xy%2B4%E4%B8%8Ex-kx%5E2y%EF%BC%88k%E4%B8%BA%E4%B8%8D%E7%AD%89%E9%9B%B6%E7%9A%84%E5%B8%B8%E6%95%B0%EF%BC%89%E7%9A%84%E4%B9%98%E7%A7%AF%E4%B8%8D%E5%90%AB%E6%9C%89x%5E2y%E9%A1%B9%2C%E6%B1%82K%E7%9A%84%E5%80%BC%3F)
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