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OpenStudy (anonymous):
Write the product in standard form. ( 4 + 7i)( 7 + 7i) -21 - 77i 49i2 + 77i + 28 -21 + 77i 77 + 21i
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OpenStudy (primeralph):
just expand it
OpenStudy (anonymous):
do you know what the answer is?
OpenStudy (primeralph):
yeah
OpenStudy (anonymous):
can you tell me? :)))))
OpenStudy (primeralph):
....I'm not allowed to until you make effort. Admin warned me.
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OpenStudy (anonymous):
49i2 + 77i + 28?
OpenStudy (primeralph):
almost there.....note that i2 = -1
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