- a a a 22. b b b
- c^2 c^2 c^2 24. d^3 d^3 d^3
- Add: 3x7 and 4x 3
- Add: 2y3 and 4y 7
- Add: 2x^2 3 and 5x^2 10
- Add: 4 a^2 1 and 5a^2 1
- (5x^3 42 x) (7x^3 107 x)
- ( 43 a^3 25 a) (58a^3 10 a)
- (3x^2 2 x4) (5x^2 17)
- (5a^2 2 a) ( 2 a^2 3 a4)
- (7y^2 5 y) (y^2 y2)
- (4p^2 4 p5) (6p2)
- (3x^2 3 x2) (3x^2 4 x3)
- (4c^2 3 c2) (3c^2 4 c2)
- (2.5a^2 3 a9) (3.6a^2 7 a10)
- (1.9b^2 4 b10) (3.7b^2 3 b11)
- (3n^2 5.8n7) (n^2 5.8n2)
- ( 3 t^2 t3.4) (3t^2 2 t1.8)
Subtract the polynomials.
- 32 u^3 16 u^3 48. 25 y^2 7 y^2
- 18 x^5 11 x^5 50. 17 x^6 22 x^6
- (30x^2 4) (11x^2 1)
- (5x^3 8) (2x^3 5)
- (3x^2 2 x1) ( 4 x^2 4)
- (7a^2 5 a) (5a^2 2 a3)
- (4.5a3.7) (2.9a4.3)
- (5.1b7.6) (3.3b5.9)
- (2b^2 3 b5) (2b^2 4 b9)
- (3a^2 2 a4) (a^2 3 a7)
- (5p^2 p71) (4p^2 p71)
- (m^2 m5) (m^2 5.5m75)
- (3.7y^2 5) (2y^2 3.1y4)
- (t^2 4.5t5) (2t^2 3.1t1)
6 x^3 4.2x^2 7
7 x^3 9.7x^2 21 3 x^2 4 x25.4
5 x^2 3 x12.54 x^2 4 x 9
9 x 3 3 x^2 7
4 x^2 5 x 62 x^2 3 x 5
4 x^2 x 73 x^2 4 x 5
2 x^2 3 x 63
9
1
9
4
9
2
3
1
3
2
3
1
4
3
4
1
4
5
8
3
8
1
8
In Exercises 69–72, recall that the perimeter of a figure is equal to
the sum of the lengths of its sides.- THE RED CROSS In 1891, Clara Barton founded
the Red Cross. Its symbol is a white flag bearing a
red cross. If each side of the cross has length , write
an expression that represents the perimeter of the
cross. - BILLIARDS Billiard tables vary in size, but all
tables are twice as long as they are wide.
a. If the billiard table is feet wide, write an
expression that represents its length.
b. Write an expression that represents the perimeter
of the table. - PING-PONG Write an expression that represents
the perimeter of the Ping-Pong table.
(x + 4) ftx ftx ftxxxAPPLICATIONS
3 x^3 4 x^2 12
^1 ^4 x^3 ^6 x^2 ^324 x^3 3 x 10
15 x^3 4 x 4225 x^3 45 x^2 31 x
112 x^3 27 x^2 17 x 2 2 x^2 4 x 12
^110 x(^2) 9 x 242
3 y^2 4 y 7
^16 y^2 ^6 y^132
3 x^2 4 x 5
1 2 x^2 2 x 32
Appendix II Polynomials A-13