EJERCICIO 221
1. x x x− = =
2. 1 1 2 2 3 1 2 23 23 a b a b a b− = =
3. 5 5 5 7 3 57 1 3 57 3 a b a b a b− = =
4. 3 3 3 31 1 2 1 2 1 2 x x x x x x−...
EJERCICIO 221
1. x x x− = = 2. 1 1 2 2 3 1 2 23 23 a b a b a b− = = 3. 5 5 5 7 3 57 1 3 57 3 a b a b a b− = = 4. 3 3 3 31 1 2 1 2 1 2 x x x x x x− − − = = = 5. 2 2 2 5 3 4 34 2 5 34 25 m n n m n m− = = 6. 1 4 1 4 1 3 3 x x = 7. x y x y x y 3 5 2 3 35 2 3 35 23− = = 8. 3 3 3 3 3 2 1 4 3 2 4 22 4 4 a x a x a a x a a x− = = = = 9. a a a a a a− = = = = = = 10. x y z y x z y x z− − = = 11. x m n x m n x m n− − − = = 12. a a a a− = = = = 13. x x x x x 2 3 2 4 3 4 3 33 3 1 1 1 = = = = = = 14. a b a b b a b b a a a b b a a = = = = = = 15. x x x x− − = = = 16. a a− − = = 17. 2 2 23 4 3 2 4 2 3 2 2 x y x
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