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1、如果你說的這兩個數是相等的 設這個數為x,則根據要求有:x^2=2x 即x(x-2)=0,可知x=0或者x=2 兩個數相乘等於兩個數相加的例子就是0和2 2、一般情况,設兩個數分別是x、y x+y=xy,可得:y=x/(x-1),當x≠1時,x和y有無數個解
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