Agar x+ soni toq son bo’lsa, quyidagilardan qaysi biri toq bo’ladi?



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TEST 3 2021-2022



TEST 3 (Easy)
1. Agar x+ 3 soni toq son bo’lsa, quyidagilardan qaysi biri toq bo’ladi?
A) 2(x + 1) B) x(x + 2) C) (x + 2)(x – 2) D) – 8
2. Agar ∙ < 0 , y ∙ z < 0 va ∙ z > 0 bo’lsa, x , y va z sonlarining ishorasini aniqlang.
A) + , + , + B) + , + , – C) + , – , + D) – , – , – 
3. Agar A = + + bo’lsa, A sonining nechta tub bo’luvchisi bor?
A) 2 B) 3 C) 4 D) 5
4. Hisoblang. + 
A) 3 B) C) D) 1
5. Agar x = 2017 + , y = 2017 + va z = 2017 + bo’lsa, shu sonlarni o’sish tartibida 
joylashtiring.
A) z < x < y B) x < y < z C) x < z 6. Hisoblang.
A) 9 B) 8 C) 6 D) 4
7. Agar 2x – = 8 bo’lsa, 4 + ni toping.
A) 64 B) 76 C) 84 D) 88
8. Hisoblang.
A) + 1 B) + 1 C) + 1 D) – 1
9. Ko’paytmani hisoblang. ∙ 
A) 7 + 4 B) 7 – 4 C) 7 + 2 D) 7 – 2
10. Hisoblang. + + + … + 
A) B) C) D) 
11. Tenglamani yeching. 8 – = 10
A) B) 3 C) 1 D) 0
12. Hisoblang. () ∙ () + 
A) + B) C) D) – 2
13. Agar a + b + c = va + + = bo’lsa, + + + + + ni toping.
A) 8 B) 5 C) D) 2
14. Hisoblang. () ∙ () 
A) B) C) 35 D) – 
15. ni hisoblang.
A) + 1 B) 2 +
C) + 1 D) 2 + 1
16. Soddalashtiring va ratsional ko’rsatkichli daraja shaklida ifodalang.
∙ ∙ 
A) B) x C) D)
17. Soddalashtiring. a < 0 < b bo’lsa, a∙ + b∙ – 2ab
A) – B) – –
C) + D) – + 
18. = a va = b bo’lsa, ni toping.
A) 6ab B) 9ab C) 36ab D) 18ab
19. Hisoblang. ( – )∙ 
A) – 2 B) – C) D) 3
20. – t – 1 = 0 bo’lsa, ni toping.
A) + t + 1 B) 2 + 2t + 1
C) 2( + t + 1) D) 2t
21. Soddalashtiring.
A) B) C) D) 
22. Hisoblang.


A) 0,375 B) 1,6 C) 0,6 D) 1,2
23. ( ∙ ni soddalashtiring.
A) B) C) D) 
24. Proporsiyaning noma’lum hadini toping. 
3 : x = 2 : 1
A) 2 B) C) 1 D) 2
25. Quyidagilardan qaysi biri noto’g’ri?
A) a > 0, b < 0, c > 0 bo’lsa, = abc
B) a , b ϵ R bo’lsa, = ∙ 
C) a > 0, b < 0, c > 0 bo’lsa, = − abc
D) + + = 
26. ∙ (– ) ∙ ni soddalashtiring.
A) B) C) – D) 
27. 21568 sonini standart shaklda yozing.
A) 21,568∙ B) 2,1568∙
C) 0,21568∙ D) 2,16∙
28. a∙b∙c = 5 bo’lsa, ( – b∙c)∙( – a∙c)∙( – a∙b) ko’paytmaning qiymatini toping.
A) – B) C) 1 D) – 
29. : ni soddalashtiring.
A) B) C) 1 – D)
30. Agar x – y = 3 va xy = 6 bo'lsa, y + x ni hisoblang.
A) 126 B) 128 C) 108 D) 72

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