vicada2782
29.07.2019 •
Mathematics
The roots of the quadratic equation $z^2 + az + b = 0$ are $2 - 3i$ and $2 + 3i$. what is $a+b$?
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Ответ:
Now, we can multiply the left sides of our equations:
=
=
=
Now that we have our quadratic in the form , we can infer that and ; therefore, we can conclude that .
Ответ: