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OpenStudy (anonymous):
Which of the following is a polynomial with roots -3, -3i, and 3i ?
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OpenStudy (anonymous):
same as before
OpenStudy (anonymous):
Isn't it different with complex numbers?
OpenStudy (anonymous):
its the same as hes last post i think
OpenStudy (anonymous):
no, no different
OpenStudy (anonymous):
your job is to multiply \[(x+3)(x-3i)(x+3i)\]
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OpenStudy (anonymous):
\[x^3+12x^2+27\]
OpenStudy (anonymous):
no
OpenStudy (anonymous):
x3 + 3x2 + 9x + 27
OpenStudy (anonymous):
\[x^3 + 3x^2 + 9x + 27\]
OpenStudy (anonymous):
yes
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