ashleyrosengren ashleyrosengren

20-10-2017
Mathematics

contestada

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

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ᴄʜɪʟᴅ ᴄʜɪʟᴅ

20-10-2017

the answer is a) -21 - 77i

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