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11-6 Skills Practice Adding and Subtracting Rational Expressions
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11-6 Skills Practice Adding and Subtracting Rational Expressions
11-6 Skills Practice. Adding and Subtracting Rational Expressions. Find each sum or difference. 1. 2y. â. 5. + y. â. 5. 3y. â. 5. 2. 4r. â. 9...
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NAME
DATE
11-6
PERIOD
Skills Practice Adding and Subtracting Rational Expressions
2y 5
y 5
3y 5
1. − + − −
5r 4r 2. − +− r
3 t+3 3. − - −t −
4. − - − −
7
9
7 7
x+2 3
x+5 3
2x + 7 3
Lesson 11-6
Find each sum or difference. 9
c+8 4
c+6 4
1 2
g+2 4
g-8 4
g-3 2
5. − + − −
6. − + − −
x 1 -− 1 7. −
3r r − 8. − -−
x-1
x-1
r+3
r+3
2r r+3
Find the LCM of each pair of polynomials.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
9. 4x2y, 12xy2 12x 2y 2
10. n + 2, n - 3 (n + 2)(n - 3)
11. 2r - 1, r + 4 (2r - 1)(r + 4)
12. t + 4, 4t + 16 4(t + 4)
Find each sum or difference. 5x 2x 15x - 2xy − 14. − -− 2 2
5 2 5r - 8 − -− 13. − 2 2 4r
r
x 4 -− 15. − x+2
3y
4r
x-1
b-4
x2 - 5x - 8 (x + 2)(x - 1)
d2 + d + 1 d-1 3 − 16. − -−
b2 - 2b - 2 (b - 1)(b - 4)
2k2 - k + 5 k k-1 − 18. − +−
2
x - 2x + 15 x 3x + 15 + − − 19. − 2 x - 25
Chapter 11
x+5
9y
−
b 2 − +− 17. − b-1
9y
(x + 5)(x - 5)
d-2
k-5
d+5
k+5
(d - 2)(d + 5)
(k - 5)(k + 5)
x+2 x-2
x2 + x - 7 (x - 2)
x-3 20. − +− − 2 2 x - 4x + 4
39
Glencoe Algebra 1
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