Mathematics, 08.01.2021 18:10, andile64
Someone please help me by tonight I'm trying not to fail math. Also I will Brainliest if you help me get the right answer please just help me.
1. What is the product of the complex numbers (3+i) and (3-i)?
A. 10-6i
B.9-i
C.8
D.10
2. Which expression Represents (-3-2i)-(5+i)?
A.-8-i
B.-8-3i
C.2-i
D.2-3i
3. What is the sum of the complex numbers (12-5i) and (-3+4i)?
A. 15-9i
B.9-i
C.9-9i
D.-16+63i
4. Which expression is equivalent to (6-2i)(2-3i)?
A. 6+22i
B. 18+22i
C. 6-22i
D. 18-22i
5. Simplify: (2+6i)-(3-5i)-(5-3i)
A. -4+16i
B. -6+14i
C. -6-2i
D. -4-4i
6. Which expression below is equivalent to 4i(12-7i)
A. -28+48i
B. -48+28i
C. 48+28i
D. 28+48i
7. Add √ -4+√-49
A. -9i
B. 5+I
C. 5-i
D. 9i
Answers: 1
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