已知多项式2x`5+(M+1)x`4+3x-(n-2)x`2+3不含x的偶次方项,则m=?n=?
侠扪给涐繲繲``xx
人气：488 ℃ 时间：2019-08-16 20:51:11
解答
由题知
m+1=0
n-2=0
所以m=-1,n=2
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