Find a polynomial with real coefficients that has zeros -1, 3i, and -3i.
A. x3 + 9x2 + x + 9
B. x3 + x2 - 9x - 9
C. x3 + x2 + 3x + 3
D. x3 + x2 + 9x + 9
E. x3 - x2 + 9x - 9
Answer: D
Mathematics
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Expand the quotient by partial fractions.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
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Perform the indicated operation.Let A = 
and B = 
. Find 3A + 4B.
A. 
B. 
C. 
D. 
Mathematics
Use Gaussian elimination to solve the system of equations. x- y+ 2z= 14x+ z= 0 x+ 4y+ z= -4
A. No solution B. (0, 0, -1) C. (0, -1, 0) D. (0, -1, 1)
Mathematics
Solve the formula for the specified variable.I = 
for n
A. n = 
B. n = IR(Ir - E)
C. n = 
D. n = 
Mathematics