Paro de camioneros
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Constanza Muñoz A.IV°B
PSU Math Booklet
1. If x = 12 – 18 : 3 + 2 · - 3, y = - 3² + (3 – 5)² and z = - 1 · 1 + 1 – 1 : 1, who values of x, y or z is less than -1?
A) - 2
B) - 3
C) - 4
D) - 5
E) - 6
2. If A and B are multiple of 6, so, their positive difference is ever divisible for:
A) 4
B) 6
C) 8
D) 9
E) 10
3. The value of (5a – 3)² · (5a + 3)², for a = 1 is:
A) 64
B) 4
C) 256
D) 16
E) 81
4. What is the value of (1 - √9 )² · ( 1 + √9)² ?
A) 9
B) 1
C) 7
D) 8
E) √9
5. The result of √3 · √12 is:
A) √12
B) √3
C) 3
D) 2
E) 6
6. Factor: 25a² - 9b²
A) (5a – 9b) ²
B) (5a – 9b) (5a + 9b)
C) (5a – 3b) (5a + 3b)
D) (5a – 3b) ²
E) (5a + 3b) ²
7. Which option is not a …ver más…
C 4. D 5. E 6. C 7. E 8. B 9. A 10. E 11. A 12. B 13. C 14. D 15. D 16. B 17. B 18. C 19. D 20. B 21. C 22. B 23. A 24. D 25. A 26. E 27. C 28. B 29. A 30.