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+2 x -5 = -2 x +5 = -10

The +2 and -5 total -3, and the -2 and +5 total +3

However 2 + 5 = 5 + 2 = +7

That's the best I can do.

* * * * *

Using the quadratic formula, you get

-1.21699 and 8.21699 (to 5 dp)

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13y ago
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Q: What multiplies into -10 but adds into 7?
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