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Mathematics, 18.12.2020 01:00 littlebunch

Perform each operation and express your answers in STANDARD form. Show your work. Part A:
(7 – 18i) – (5 – ROOT(-81)
Part B:
(9 + 2 ROOT(6)i) (9 – 2 ROOT(6)i)

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Perform each operation and express your answers in STANDARD form. Show your work. Part A:
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