若—3X的2A次方乘Y的3次方与5X的4次方乘Y的3B次方是同类项,则A=?,B=?
人气：337 ℃ 时间：2019-08-21 04:41:54
解答
因为X,Y为不要求的未知数,所以可以把他们看成元,不需要去求.
因为是同类项,且中间为乘法.所以有X的相对应,有Y的相对应.
根据运算法则,2A=4.,3=3B
因此,求得,A=2,B=1.
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