Find all complex zeros of the polynomial function, and write the polynomial in completely factored form.f(x) = x4 + 7x3 + 21x2 + 63x + 108
A. f(x) = (x - i
)(x + i
)(x - 3)(x +3)
B. f(x) = (x + 4)(x + 3)(x - 3i)(x + 3i)
C. f(x) = (x - 4)(x + 3)(x - 3)(x + 3)
D. f(x) = (x - 1)(x - 12)(x - 3i)(x + 3i)
Answer: B
Mathematics
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Provide an appropriate response. Evaluate and express to the nearest ten-thousandth: ln 8.2
A. 0 B. 3,640.9503 C. 0.9138 D. 2.1041
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Divide and simplify. Write the answer as a whole or mixed number when necessary.
÷ 
A. 4
B. 1
C. 1
D. 2
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Find the slope of the line.
?
?
A. m = -1 B. m = 0 C. m = 1 D. m = 18 E. m = 22
Mathematics
Use Cramer's rule to solve the linear system.2x + 3y = 25x + y = -21
A. (5, -4) B. (-4, -5) C. (-5, 4) D. (4, -5)
Mathematics