Find the zeros of f(x), given that one zero is k.f(x) = 9x4 - 6x3 + 9x2 + 6x - 18
k = -1
A. -1, 
± 
i
B. -1, -1 ± 
C. ±1, 1 ± 
D. ±1, 
± 
i
Answer: D
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Simplify the expression. Assume that variables represent nonzero numbers.
3
A. 
B. 
C. 
D. 
Find the intervals on which the function is increasing and the intervals on which the function is decreasing.f(x) = -x2 + 13x - 6
A. Increasing on 
; decreasing on 
B. Increasing on 
; decreasing on 
C. Increasing on 
; decreasing on 
D. Increasing on 
; decreasing on 
Solve.A contractor finds that it takes Sam Tockett 9 hours to construct a wall of a certain size. It takes Jim Lowell 6 hours to construct the same wall. How long would it take if they worked together?
A. 1 hr
B. 15 hr
C. 3
hr
D. 
hr
To promote sales, a free 4-ounce bottle of shampoo is packaged with every large bottle (see illustration). Use the information on the package to determine how many ounces of shampoo the large bottle contains.
__________ oz
Fill in the blank(s) with the appropriate word(s).