按规律写数1,-4,3,-6,5,-8()()后面两个数怎么填啊

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按规律写数1,-4,3,-6,5,-8()()后面两个数怎么填啊

按规律写数1,-4,3,-6,5,-8()()后面两个数怎么填啊
按规律写数1,-4,3,-6,5,-8()()
后面两个数怎么填啊

按规律写数1,-4,3,-6,5,-8()()后面两个数怎么填啊
7,-10

-8+15=7
7-17=-10