What multiplies to be 560 and adds to 9

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asked Apr 2, 2017 228k views

1 Answer

Numichi · Answer 1 · 2017-04-06T11:24:19+0000

There are no real numbers that can do that job.

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

4.5 + i23.23
and
4.5 - i23.23 .

' i ' = the imaginary unit = √(-1)

What multiplies to be 560 and adds to 9

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