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Write a recursive rule for the sequence -5, 10, -20 , 40 -80
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Write a recursive rule for the sequence -5, 10, -20 , 40 -80

User Aloong
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For every negative number, you multiply that number by two, and then negative one. For example: -5*2= -10. -10*-1=10.
User Fruitjs
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