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More answers

Different signs show it would have values subtracted to get the 18.

1,72=71

2,36=34

3,24=21

4,18=14

6,12=6

8,9=1

There are none that work so if you are factoring then it would be prime.

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13y ago
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Q: What multiplies to get -72 and adds to get -18?
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