Posted by **Joy** on Tuesday, July 30, 2013 at 3:55am.

7. Which of the following scenarios could be described by the real valued function f(x) = x3 + 3x2 + 2x?: *

A. A shoebox has a length that is 1 inch longer than its width and a height that is 1 inch longer than its length.

B. We want to know the product of three consecutive numbers

C. Start with a number. Cube it. Then square it and triple it. Then add twice the number.

D. A and B are correct.

E. A, B, and C are correct

- Discrete Mathematics -
**Steve**, Tuesday, July 30, 2013 at 4:46am
(E) but C is ambiguous and unclear.

A&B for sure, but you'd better get C cleared up.

- Discrete Mathematics -
**Joy**, Tuesday, July 30, 2013 at 6:25am
I will try and get C cleared up and maybe think of something else to put in place of it.

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