Answer
$-4-12i$
Work Step by Step
Step 1: $-2i(6-2i)$
Step 2: $-2i(6)-2i(-2i)$
Step 3: $-12i+4i^{2}$
Step 4: Since $i^{2}=-1$,
$-12i+4(-1)$.
Step 5: $-12i-4$
Step 6: $-4-12i$
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