Perform the indicated operation & simplify. Express the answer in terms of
i
(as a complex number).
(
6
−
7
i
)
(
2
+
4
i
)
\displaystyle {\left({6}-{7}{i}\right)}{\left({2}+{4}{i}\right)}
(
6
−
7
i
)
(
2
+
4
i
)
=
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\displaystyle