如果多项式3x³-2x²+x+kx²-5中不含x²项,则k的值为 A.1 B.-2 C.2 D.0
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![如果多项式3x³-2x²+x+kx²-5中不含x²项,则k的值为 A.1 B.-2 C.2 D.0](/uploads/image/z/4345809-33-9.jpg?t=%E5%A6%82%E6%9E%9C%E5%A4%9A%E9%A1%B9%E5%BC%8F3x%26%23179%3B-2x%26%23178%3B%2Bx%2Bkx%26%23178%3B-5%E4%B8%AD%E4%B8%8D%E5%90%ABx%26%23178%3B%E9%A1%B9%2C%E5%88%99k%E7%9A%84%E5%80%BC%E4%B8%BA+A.1+B.-2+C.2+D.0)
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如果多项式3x³-2x²+x+kx²-5中不含x²项,则k的值为 A.1 B.-2 C.2 D.0
如果多项式3x³-2x²+x+kx²-5中不含x²项,则k的值为 A.1 B.-2 C.2 D.0
如果多项式3x³-2x²+x+kx²-5中不含x²项,则k的值为 A.1 B.-2 C.2 D.0
-2x^2+kx^2=0
k=2