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Mathematics 7 Online
OpenStudy (anonymous):

Write the product in standard form. ( 4 + 7i)( 7 + 7i) -21 - 77i 49i2 + 77i + 28 -21 + 77i 77 + 21i

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.

OpenStudy (anonymous):

49i2 + 77i + 28?

OpenStudy (primeralph):

almost there.....note that i2 = -1

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