Find the linear factorization of the polynomial and find all roots of the polynomial. f(x) = x4 + 9x2
A. f(x) = x2(3x + i)2, roots: 0, ± i
B. f(x) = x2(x + 3i)2, roots: 0, -3i
C. f(x) = x2(x + 3i)(x - 3i), roots: 0, ± 3i
D. f(x) = x2(3x + i)(3x - i), roots: 0, ± 3i
Answer: C
Mathematics
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Solve the system of linear equations.
A. 
B. 
C. 
D. 
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Perform the indicated operations. Simplify the answer.
A. 
B. - 
C. 
D. - 
Mathematics
Solve the equation.
= x + 5
A. {-8} B. {-7} C. {9} D. {8}
Mathematics
Evaluate the iterated integral.
A. 9 ln 5
B. ln 45
C. 
ln 5
D. ln 5 ? ln 9
Mathematics