$12+2i$ or, $2(6+i)$
Work Step by Step
Solve.$(7+12i)+(5-10i)$ Need to drop the parentheses and add the terms. we have, $=7+12i+5-10i$ or, $=7+5+12i-10i$ Hence, $(7+12i)+(5-10i)=12+2i$ or, $=2(6+i)$
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