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如果多项式M满足M÷3xy=-1/3x^n+1+1/6,则m为?A.-1/9x^n B.-1/9x^n+2+1/18xy
C.-1/3x^n-1+1/6xy D.-x^n+2y+1/2xy
人气:297 ℃ 时间:2020-04-07 04:47:19
解答
M=[-1/3x^(n+1)+1/6]*3xy=-x^(n+2)y+1/2xy
选D
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