(4+6i)-(-2+8i)-(-9+8i)
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1 Answer

(4 + 6i) - (-2 + 8i) - (-9 + 8i)
= 4 + 6i + 2 - 8i + 9 - 8i
= (4 + 2 + 9) + (6i - 8i - 8i)
= 15 - 10i
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