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Elinor Murray ∙
The factor pairs of 20 are (20,1)(10,2)(5,4)
Even considering their negative counterparts, none of them add up to -8
If that was -20, you could use -10 and 2.
Dominick Mucci ∙
-10 and 2 make -8 and multiply to -20
2584
-28
26
20
-12
-70
9 and 11.
-12.385165 and -1.614835
8 and 2