Xakimjon Vaxobov ( Haftalik ) Test # 3

K anal : @matematikaAFB Xakimjon Vaxobov

( Haftalik ) Test # 3

1. Agar x²−7𝑥+4=0 bo’lsa, 𝑥²+ ning son qiymatini toping.

A) 41 B)38 C)57 D)20
2. Toq sonning o’zidan oldin keluvchi toq sonning ikkilangani bilan yig’indisi 49 dan kichik. Ushbu shartni qanoatlantiruvchi juft sonlardan eng kattasini toping

A)17 B) 15 C) 11 D)12

3. Hisoblang: (2²+6²+10²+14²+18²+20²) -

− (1+5²+9²+13²+17²+19²)

A)134 B) 104 C) 128 D)144
4. x , y , z butun sonlar bo’lib , y < 0 va

3x = − = bo’lsa, x, y, z, sonlarini o’sish tartibida joylashtiring.

A) y < x < z B) z < y < x

C) x < y < z D) y < z < x

5. Soddalashtiring:

2a + -7

A) 4a B) – 3a C) D) 3a

6. 45 ga bo’linadigan 64X5Y ko’rinishdagi 5 xonali sonlar orasida X ning eng katta qiymatini toping.

A) 7 B) 5 C) 9 D) 8
7. −1 dan katta a;b;c sonlari uchun

𝑎𝑏+𝑎+𝑏 = 11;

𝑏𝑐+𝑏+𝑐 = 5;

𝑎𝑐+𝑐+𝑎 = 1

tengliklar o’rinli bo’lsa, 𝑎𝑏𝑐+𝑎𝑏+𝑏𝑐+𝑎𝑐+𝑎+𝑏+𝑐 ifodaning qiymatini toping. A) 12 B) 11 C ) 9 D) 8

8.

9. bo`lsa, a=?

A) 1 B) 2 C) 3 D) 6

10. Agar a(x-2)² + b(x+1) + c = 2x²-3x+7 ayniyat bo`lsa, a+b+c-?

A) 1 B) 2 C) 3 D) 4

11. . Soddalashtiring:

A) B) 0

_C) D)

_12. Agar a+x=y bo’lsa , ni hisoblang ? A) 0 B) 1,5 C) 1 D) 3

13. Agar m ning qanday qiymatida ushbu kasr soddalashtirilsa ko`rinishga keladi? A)5 B) 4 C)3 D)2

14. Agar va bo’lsa, son nimaga teng.

A) B) C) D)

15. ni ga bo‘lgandagi qoldiqni toping.

A) B)

C) D)

16. ni soddalashtiring.

A) −4 B) 4x C) −2x D) 0

17. ni soddalashtiring.

A) B) C) D)

18. a ning qanday qiymatida

P(x) = 2x¹²−ax⁶+4x³−3x²+5x+1 ko'phadning koeffitsiyentlari yig’indisi 7 ga teng bo’ladi?
A) −1 B) −4 C) 2 D) 3
19. a+b+c = −2,5 va bo’lsa, ifodaning qiymatini toping.

A) 8 B) aniqlab bo’lmaydi C) 6 D) 3

_20.Natural sonlar qatori quyidagi qismlarga ajralgan:

10-qismdagi sonlaryig`indisini toping?

Javob:________________________

21.

A) B)

C) D)

22. Agar barcha lar uchun

Ayniyat bajarilsa, ni toping.

A) 2 B) 9 C) –4 D) –2

23. Agar bo`lsa, ifodaning qiymatini toping?

A) B) C) D)

24. ni soddalashtiring.

A) 0 B) (a+b) C) a−b D) ab

25. ni ko’payturuvchilarga ajrating.

A) B)

C) D)

26. Agar bo‘lsa, ni soddalashtiring.

A) 2 B)

C) 1 D)

27. Agar bo‘lsa, ni soddalashtiring.

A) B)

C) D)

28. ni ko‘paytuvchilarga ajrating.

A) B)

C) D)

29.Qandaydir a, b uchun

(x + 2) ∙ (x + a) = x² + bx + 6

ayniyat bajarilsa, 5a-2b ni toping?

A) 9 B) 5 C) 0 D) 1

30. 5²⁰⁰ sonini 24 ga bo’lganda, qoldiq qanday bo’ladi?

A) 15 B) 3 C) 1 D) 23
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