当k=( )时,多项式x^2+xy+y^2与多项式2x^-3kxy-3y^之和不含xy项
当k=( )时,多项式x^2+xy+y^2与多项式2x^-3kxy-3y^之和不含xy项
数学人气:882 ℃时间:2020-03-15 05:53:06
优质解答
1-3k=0 得:k=1/3
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