nikki1996 nikki1996

10-12-2014
Mathematics

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what two numbers add up to -7 but multiply to -18

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hannahlovik hannahlovik

10-12-2014

Since the two numbers multiply to form a negative number, we know one has to be positive and the other has to be negative. The only numbers that can add up to -7 and also multiply to -18 are 2 and -9.
-9+2=-7
2×-9=-18

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