Question 529794


{{{(12+5i)-(9-2i)}}} Start with the given expression.



{{{12+5i-9+2i}}} Distribute the negative.



{{{(12-9)+(5i+2i)}}} Group like terms.



{{{3+7i}}} Combine like terms.



So {{{(12+5i)-(9-2i)=3+7i}}}



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