3 years ago

What can multiply to give you 80 but add up to give you 11

1 answer:

4 0

<span>
There are no real numbers that can do that job.

There's a pair of complex numbers that can do it.
They are

   5.5 + i4.97
and
   5.5 - i4.97 .

   ' i ' = the imaginary unit = √(-1)

</span>

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