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OpenStudy (anonymous):
perform the indicated operation (8+2i)(8-2i)
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OpenStudy (anonymous):
8*8-8*2i+2i*8-2i*2i 64+4 68
OpenStudy (anonymous):
i*i=-1
OpenStudy (anonymous):
(a+bi)(a-bi)=a^2+b^2 the product of a complex number and its conjugate is a sum of squares; memorize this formula
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