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Why is a negative number times a negative number positive❓❓

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discovermaths

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Wed, 22 May 2019 00:00:00 GMT

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negative times negative

negative multiplication

negative numbers

signed numbers

proof

arithmetic

discover maths

discovermaths

mathematics

David Darling

Juan Medina

In this video we show, step by step, that when multiplying a negative number by a negative number the result is always a positive number. David's science and music channel: null Juan's mathematics channel (Spanish): null

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