Factor f(x) into linear factors given that k is a zero of f(x).f(x) = x4 + 6x3 + 7x2 - 12x - 18; k = -3 (multiplicity 2)
A. f(x) = (x -3) (x + 3) (x - 
)(x + 
)
B. f(x) = (x + 3)2(x - 
)(x + 
)
C. f(x) = (x + 3)2(x - 2)(x + 2)
D. f(x) = (x -3 )2(x - 
)(x + 
)
Answer: B
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Give your answer as a decimal.
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Find the focus and directrix of the parabola.y = 10x2
A. 
, x = - 
B. 
, x = - 
C. 
, y = 
D. 
, y = - 
Describe the situation with a linear inequality and then solve the inequality.David has $13,000 to invest. He invests $8000 in a mutual fund that pays 12% annual simple interest. If he wants to make at least $2200 in yearly interest, at what minimum rate does the remainder of the money need to be invested?
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and B = 
.
A. 
B. 
C. 
D. 