Hisoblang. A b c d 3,5 2

Test
1. Hisoblang.

A) 2 B) 3 C) D)3,5
2. Ikki sonning ko’paytmasi 294 ga, ularning eng katta umumiy bo’luvchisi 7 ga
teng. Bu sonlarning eng kichik umumiy karralisini toping.
A) 42 B) 52 C) 56 D) 49
3. Qaysi tengliklar qoldiqli bo’lishni ifodalaydi?
1) 25 = 2 · 12 + 1 2) 25 = 8 · 3 + 1 3) 25 = 4 · 6 + 1 4) 25 = 3 · 9 – 2
A) 1; 2; 3 B) 3; 4 C) 2; 4 D) 1; 3
4. Sonlarni kamayish tartibida joylashtiring?
a = ; b = ; c = ; d =
A) a > b > c > d B) b > a > d > c C) d > a > b > c D) d > b > c > a
5. Agar = a bo’lsa, quyidagilardan qaysi biriga teng?
A) 3 – a B) 4 − a C) 5 – a D) 3 −
6. Hisoblang.

A) 2 B) 0 C) 2 D) 1
7. Agar x > y > z bo’lsa, |x − y| − |z − y| − |z − x| ni soddalashtiring.
A) 2x B) 2y − 2x C) 2z − 2y D) 2y
8. Koordinatalari −3, 2 va 4,2 bo’lgan sonlar orasida nechta butun son bor?
A) 7 B) 6 C) 9 D) 8

9. ko’paytma necha xonali son bo’ladi?

A) 21 B) 18 C) 19 D) 20
10. P va Q ko’phadlar ayirmasini toping.
P = − y − (x + 2y), Q = − y − (x − y)
A) − B) 4y C) −4y D)
11. Soddalashtiring. 12² − (x + 7)² − (5 − x) · (19 + x)
A) 0 B) 50 C) 140 D) 90
12. Agar a − = bo’lsa, ning qiymatini toping?
A) B) C) D)
13. Ushbu 1 − (2x − 3)² ifodani ko’paytuvchilarga ajrating.
A) 2(x + 2)(x + 1) B) 3(x − 2)(x + 1) C) 4(2 − x)(x − 1) D) 2(1 − x)(x − 2)
14. Soddalashtiring:

A) B) 3 C) m – 3 D) 1
15. Amallarni bajaring.
+ −
A) 1 B) 6 C) D) 5
16. Hisoblang. −
A) −10 B) 10 C) −8 D) 8
17. Sonlarni o’sish tartibida joylashtiring.
a = , b = , c =
A) a < b < c B) c < b < a C) a < c < b D) b < a < c
18. Tenglamani yeching. = 2,1(6)
A) ∅ B) 2 C) −2 D) x ∈ R
19. Agar x² + 2x + 1 = 0 tenglamaning ildizlari x₁ va x₂ bo’lsa, x₁³− x₂³ ni hisoblang.
A) 1 B) 3 C) 4 D) 0
20. Tenglama ildizlaridan biri 2 ga teng. Ikkinchi ildizni toping.
2x² + x − a = 0
A) 2,5 B) −2,5 C) 1,5 D) −1,5
21. (x; y) sonlar jufti 3x − 2y = −8
x + 3y = 1
sistemaning yechimi bo’lsa, y − x ni toping.
A) 0 B) −1 C) −2,5 D) 3
22. Agar 3a + 4b = 16 va 2c − b = 1 bo’lsa, 3a + 8c ning qiymatini toping.
A) 18 B) 4 C) 20 D) 23
23. Agar 3x − 2y = 1
4x − y = −2
bo’lsa, y² – x² ning qiymatini toping.
A) −1 B) −3 C) 3 D) 5
24. Agar (x − 5) * ( x + 4) = 0 bo’lsa, x + 4 qanday qiymatlar qabul qiladi?
A) faqat 0 B) faqat −20 C) 0 yoki 5 D) 0 yoki 8
25. Tenglamani yeching.

A) 5,2 B) 5 C) 4 D) 4, 5
26. a, b va c ning qanday qiymatida = tenglik ayniyat bo’ladi?
A) −1; 1; 1 B) 0; 1; 2 C) 1; −1; D) 2; −2;
27. x = 5 va y = 6 bo’lsa, − ning qiymatini hisoblang.
A) B) C) D)
28. Hisoblang. −
A) 1 B) −1 C) 2 D) −2
29. Hisoblang.
A) 0, 45 B) 0, 27 C) 0, 3 D) 0, 06
30. Hisoblang.

A) B) C) D)