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Topic 5.2
Polynomials
Homework
Simplify the expression.
1. ( 3x 2  2 y 4 )  (7 x 4  10 z 9 )
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Date: __________________
2. (5 x  8 y )  (3 y  6)  (8 x  6)
7 x 4  3x 2  2 y 4  10 z 9
13 x  5 y  12
3. (2 x 2  5 x  10)  (9 x 2  12 x  14)
4. ( x 2  y3  z 4 )  ( x3  y 2  z )
11x 2  7 x  4
Simplify using FOIL.
5. (x + 5)(x + 2)
x 2  7 x  10
8. (2x + 4)(x + 5)
2 x 2  18 x  20
11. (9x – 1)(2x – 2)
18 x 2  20 x  2
 x3  x 2  y 3  y 2  z 4  z
6. (x – 4)(x – 3)
x 2  7 x  12
9. (3x + 1)(2x – 2)
6 x2  4 x  2
12. (x – 8)(-2x + 3)
2 x 2  19 x  24
7. (x – 7)(x + 5)
x 2  2 x  35
10. (4x – 5)(x + 5)
4 x 2  15 x  25
13. (-2x – 4)(-3x – 5)
6 x 2  22 x  20
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