+ 5x + 3 ≤ 0 tengsizlikning barcha butun yechimlari yig‘indisini toping. A −10 b −14 c −13 d −15

1 x ² + 5x + 3 ≤ 0 tengsizlikning barcha butun yechimlari yig‘indisini toping. A) −10 B) −14 C) −13 D) −15

2 Agar 2 ^x = 155 bo‘lsa, |x − 8| + |x − 6| ifodani soddalashtiring. A) 2 B) 14 − 2x C) 2x − 14 D) −2

3 Hisoblang c^3k c^3k c^3k c^3k c^3k c^3k c^3k : c^k c^k c^k c^k c^k c^k c^k A c^14k B c^k C c^26k D c^2k

4 x ning qanday qiymatida 3 (2 − x) − 8 = 10 tenglik o‘rinli bo‘ladi? A) −4 B) −6 C) 4 D) 6

5 m ning qanday qiymatlarida 2m = 3 — 5x tenglamaning ildizlari (1;5) da bo’ladi? A (- 11;1) B ( - 1;1) C (-1;-11) D

6 O'sish tartibida yozing: a=7/15, b=9/20  va c=8/17

A) b < a < c B) b < c < a C) a < b < c D) a < c < b

7 funksiyaning aniqlanish sohasini toping.

A) [1;∞) B) [0,5;1] C) [0,5;+∞) D) (∞;0,5]

8 Ko’phadni ko’paytuvchilarga ajrating. 27a²-48c²+36ab+12b²

A)3(3a-2b+4c)(3a+2b-4c) B)6(3a-2b+4c)(3a-2b-4c) C)3(3a+2b+4c)(3a+2b-4c) D)3(3a+2b-4c)(3a-2b-4c)

9 Agar a+a^-1=3 bo’lsa a⁵+a^-5 ni toping. A 124 B 123 C 125 D 112

10 Agar va bo’lsa, ni toping.

A) 30 B)60 C)68 D)42

11 tenglamaning ildizlari yig'indisini toping

A) -2 B) 0 C) 3 D) -1

12 (x+4)(7-x)()=1 tenglamani haqiqiy ildizi nechta

A 1 B 2 C ildizi yo’q D) to’g’ri javob yo’q

13 tenglamaning ildizlari quyidagi oraliqlardan qaysi biriga tegishli?

A) B) C) D) (-13;2)

14 sonini 72 ga bo‘lganda bo‘linma ga, qoldiq ga teng bo‘ladi (). ning eng kichik qiymati nechaga teng? A) 148 B) 729 C) 640 D)to’g’ri javob keltirilmagan

15. Suv solingan idishdan 80 foiz suv olindi, so‘ngra yana qolgan suvning 25 foizi olindi. Idishda necha foiz suv qolgan? A) 15 B) 30 C) 20 D) 18

16 Agar n, m va k natural sonlar uchun nm = 25 va mk = 4 bo‘lsa, n + m + k ifodaning qiymatini toping.

A) 35 B) 42 C) 30 D) 19

17 Silindrning balandligi 5 ga, o‘q kesimining diagonali 13 ga teng. Silindr asosining radiusini toping.

A) 8 B) 4 C) 12 D) 6

18. Ifodani soddalashtiring:  A)  B)  C)  D)