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Precalculus
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OpenStudy (anonymous):
Write the sum or difference in the standard form a + bi. ( 7 + 5i) - ( -9 + i) a. 16 + 4i b. -16 - 4i c. 16 - 4i d. -2 + 6i
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OpenStudy (anonymous):
Definitely c. 16-4i after simplifying.
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