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Mathematics 7 Online
OpenStudy (anonymous):

Solve the equation. (z +3 i) ^ 3 - 2 (z +3 i) ^ 2 + 16= 0. Z=2-5i

OpenStudy (anonymous):

z = 2-5i is a solution to the equation.

OpenStudy (anonymous):

yes but there are two roots that I can not find them

OpenStudy (anonymous):

When in doubt, ask Wolfram.. http://www.wolframalpha.com/input/?i=%28z+%2B3+i%29+^+3+-+2+%28z+%2B3+i%29+^+2+%2B+16%3D+0

OpenStudy (anonymous):

thanks

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