Perform the indicated operation.
? 
A. 
B. 
C. 2
D. 
Answer: C
Mathematics
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Multiply. Write the result in the form a + bi.(6 - 9i)(2 + 4i)
A. 48 - 6i B. 48 + 6i C. -24 - 42i D. -36i2 + 6i + 12
Mathematics
Solve the system for all real solutions, using any suitable method.
?
?
A. 
B. 
C. 
D. 
E. inconsistent
Mathematics
Simplify the complex rational expression using Method 2.
A. - 
B. 
C. - 
D. 
Mathematics
Find the absolute value.
A. 
B. 11
C. -11
D. - 
Mathematics