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Multiply Write Your Answer in a +Bi Form (7−4i)(9+4i)(7-4 \mathrm{i})(9+4 \mathrm{i})

Question 232

Multiple Choice

Multiply. Write your answer in a +bi form.
- (7−4i) (9+4i) (7-4 \mathrm{i}) (9+4 \mathrm{i})


A) 79−8i79-8 \mathrm{i}
B) 47−64i47-64 \mathrm{i}
C) −16i2−8i+63-16 i^{2}-8 i+63
D) 79+8i79+8 \mathrm{i}

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