Factor the expression completely.5x3 + 15x2 - 50x
A. (5x2 + 10x)(x - 5)
B. 5x(x + 2)(x - 5)
C. (x - 2)(5x2 + 25x)
D. 5x(x - 2)(x + 5)
Answer: D
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Solve the problem.Copier X can make 1000 copies in 3 minutes and Copier Y can make 1000 copies in 2 minutes. Copier X has several 3000 page jobs and must rest 1 minute between jobs; Copier Y has several 4000 page jobs and must rest 2 minutes between jobs. If both copiers are started at the same time, in how many minutes will the copiers be ready to start a new job at the same time?
A. 6 minutes B. 5 minutes C. 10 minutes D. 9 minutes
How many permutations are there of the word? ? BOOKKEEPING ?
A. 4,989,800 B. 4,989,600 C. 2,494,800 D. 4,989,400 E. 7,484,700
Find all values of the variable for which the rational expression is undefined.
A. 8 B. 0 C. None D. -8
Show that f and g are inverses of each other by verifying that f(g(x)) = x = g(f(x)).
; 
What will be an ideal response?