Multiply.-8x2(x2 - 3x - 9)
A. 8x4 + 24x3 - 72x2
B. -8x4 - 24x3 + 72x2
C. 8x4 - 24x3 - 72x2
D. -8x4 + 24x3 + 72x2
Answer: D
Mathematics
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Add the following complex numbers:
a. (3 + j4) + (1 + j6) b. (-2 + j3) + (4 - j6) c. (j4) + (6 - j2) d. (5 - j3) + (-5 + j3)
Mathematics
Use transformations to graph the function.y = 3 sin x + 5
A. 
B. 
C. 
D. 
Mathematics
Find all specified roots.Seventh roots of 1.
A. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
B. -1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
C. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
D. 1, cis 
, cis 
, cis 
, cis 
, cis 
, cis 
, -1
Mathematics
Multiply.
(a - b + 4)
A. 
a + 
b + 28
B. 
a - b + 4
C. 
a - 
b + 7
D. 
a - 
b + 4
Mathematics