Name _________________________________________________________ Date _________
7.8 Puzzle Time
What Do You Get When You Cross A
Computer With
A Freezer?
Answers
O. 4 x x  10 x  10
Write the letter of each answer in the box containing the exercise
number.
L.
 x  56 x2
Factor the polynomial completely.
R.
 x  4 x  4 x  8
S.
 x  y x
1. x  3x  4 x  12
3
 7
2
2. 6 x3  30 x 2  7 x  35
3. x  2xy  9 x  18 y
2
 8
W.  7 x x  1
 x2
2
 4 x  3
4. x2  8x  xy  8 y
E.
5. 4 x3  400 x
A. 6 x3  x  3 x  2
6. 3x3  36 x2  108x
Y. 3x x  6
7. 6 x5  6 x4  36 x3
8. 8x  24 x  88x
4
3


S. 8 x 2 x 2  3x  11
2
E.
9. x  8 x  16 x  128
3
2
x
 9 x  2 y 
2
V.  3, 0, 3
R. 5
C. 1, 5
O.  2,
10.  7 x  14x  7 x
3
2
Solve the equation.
11. 3x 2  18 x  15  0
3
,2
8
N.  6,  2, 6
12. x3  2 x2  36 x  72  0
13. 63x  7 x3  0
14. 8 x3  3x 2  32 x  12
15. The volume of a box is 30 cubic inches. The width of
the box is 2 inches less than the length. The height is
3 inches less than the length. Find the length of the box.
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