解方程1÷﹙x+5﹚+1÷﹙x+4﹚-3÷﹙x+3﹚-2÷﹙x+2﹚+1÷﹙x+1﹚+1÷x=0
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这么变态的题目,要费多少判神的脑细胞啊。
首先是每一项都乘以(X+5)(X+4)(X+3)(X+2)(X+1)X 所以就掘搜亏变成了
(X+4)(X+3)(X+2)(X+1)X +(X+5)(X+3)(X+2)(X+1)X-(X+5)(X+4)(X+2)(X+1)X-(X+5)(X+4)(X+3)(X+1)X+(X+5)(X+4)(X+3)(X+2)X+(X+5)(X+4)(X+3)(X+2)(X+1)=0
(X²+7X+12)(X²+3X+2)漏世X+(X²+8X+15)(X²+3X+2)X-(X²+9X+20)(X²+3X+2)X-(X²+9X+20)(X²+4X+3)X+(X²+9X+20)(X²+5X+6)X+(X²+9X+20)(X²+5X+6)(X+1)=0
首先是每一项都乘以(X+5)(X+4)(X+3)(X+2)(X+1)X 所以就掘搜亏变成了
(X+4)(X+3)(X+2)(X+1)X +(X+5)(X+3)(X+2)(X+1)X-(X+5)(X+4)(X+2)(X+1)X-(X+5)(X+4)(X+3)(X+1)X+(X+5)(X+4)(X+3)(X+2)X+(X+5)(X+4)(X+3)(X+2)(X+1)=0
(X²+7X+12)(X²+3X+2)漏世X+(X²+8X+15)(X²+3X+2)X-(X²+9X+20)(X²+3X+2)X-(X²+9X+20)(X²+4X+3)X+(X²+9X+20)(X²+5X+6)X+(X²+9X+20)(X²+5X+6)(X+1)=0
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