7-sinf Algebra bo`yicha test sinovi

7-sinf Algebra bo`yicha test sinovi
1. Hisoblang: .
A) 4 B) 2 C) D) .
2. Birhadning son qiymatini toping: , bunda y = -15, x = 6.
A) 3 B) -1 C) 12 D) 18
3. Birhadlarni ko`paytiring: .
A) -7,5a⁵b⁷c⁷ B) -21 a⁵b⁷c⁷ C) -7,5a⁶b¹⁰c¹² D) -21 a⁶b¹⁰c¹²
4. Ko`phadning son qiymatini toping: x² +2xy +y², bunda x = 1,2, y = -1,2.
A) 1,5676 B) 0 C) 1 D) 5,76
5. Ko`phadni standart shaklga keltiring: . A) B) C) 2x²y D) 2x²y + 1
5. Kasrlarning ayirmasini toping: .
A) B) C) D) .
6. Kasrni qisqartiring: .
A) B) C) D)
7.Birhadning son qiymatini toping: , bunda a= -2, b= -1, c=10.
A) -8 B) 8 C) D) -
8. Soddalashtiring: (c-3)² – (c+3)(3-c)
A) -6c B) 2c² – 6c C) 2c² – 6c +18 D) 0

9. Ko`paytirishni bajaring: (x² + 1)(x -1)(x+1)

A) x⁴+1 B) x⁴ – 1 C) (x - 1)⁴ D) (x + 1)⁴
10. Tenglamani eching:
A. x=0; B. x=17; D. x= -17; E. yechimga ega emas; F. x= -0;
11. Zavod mashina ishlab chiqarish buyurtmasini 20 kunda bajarishi kerak edi. Lekin zavod har kuni rejalashtirilganidan tashqari 1ta mashina ortiq ishlab chiqarganligi sababli, muddatidan bir kun oldin buyurtmani bajaribgina qolmasdan,
balki qoshimcha 4 ta ortiq mashina ishlab chiqargan. Zavod buyurtma bo’yicha nechta mashina ishlab chiqarishi kerak edi? A. 300ta; B. 400ta; D. 404ta; E. 304ta; F. 3001 ta.
12. Ikkihadlarni ko’paytiring.
A. 3x² + 2x + 4 B.4x² + 5x - 2 D. 3x² + 2x – 3 E. 3x² – 5 F. 2x² + x - 15
13. Otasi 32 yoshda o’gli esa 6 yoshda. Necha yildan keyin otasi o’g`lidan 3 marta katta bo’ladi?
A.5yil; B.8yil D.7yil; E.6 yil
Sonli ifodaning qiymatini toping;
A. B. ; D. ; E.
14. tenglamaning ildizi bo`lsa, ifodaning qiymatini toping.
A)50 B)10 C)5 D)37 E)35
15. Maktab matematika xonasidagi geometrik shakllar___uchburchak va to`rtburchaklarning umumiy soni 19 ta, ularning uchlarining jami soni 65 ta.Xonada nechta uchburchak va to`rtburchak shakllari bor?
A) ;
B) ;
C) ;
D) ;
E) ;
16. Ikkita buyumning birgalikdagi bahosi 43500 so’m turadi. Agar birinchi buyumning bahosi 10% kamaytirilsa, ikkinchisiniki esa 15% orttirilsa, ular birgalikda 45100 so’m turadi. Birinchi buyumning dastlabki bahosini toping.
A) 19700 B) 17320 C) 23800 D) 21830.
17. Qisqartiring:
A) B) a-2 C) 3a+2 D) 1
₁₈. x⁴ + x² +1 ni ko’paytuvchilarga ajrating.
A) (x² + x +1)(x² – x + 1)
B) (x² + x +1)(x² + x – 1)
_{C) (}x² + x +1)(x² – x – 1)
D) (x² + x +1)(– x ² + x – 1)
19. Ikki xonali sonning raqamlari yig`indisi 6 ga teng. Agar bu songa 18 qo`shsa, berilgan sonning raqamlari o`rinlarini almashtirib yozishdan xosil bo`lgan songa teng bo`lgan son xosil bo`ladi. Berilgan sonni toping
A) 24 B) 32 C) 42 D)54
20. ni yeching.
A) 1 B) C) D) 2
21. 5 ta sonning o’rta arifmetagi 13 ga teng. Shu sonlarga qaysi son qo’shilsa ularning o’rta arifmetigi 19 ga teng bo’ladi?
A) 49 B) 40 C) 46 D) 54
22. Ikki pristan(Qayiq to'xtash uchun qirg'oq bo'yiga tayyorlangan joy) orasidagi masofa 63 km. Bir vaqtning o’zida oqim bo’ylab birinchi pristandan sol, ikkinchisidan motorli qayiq jo’natildi va motorli qayiq solni 3 soatda quvib yetdi.Agar daryo oqimining tezligi 3 km/soat bo’lsa, qayiqning turg’un suvdagi tezligini toping.
A) 21 B) 20 C) 22 D) 19 E) 18
23. ni hisoblang.
A) 1,75 B) 2,75 C) 2,5 D) 2,25 E) 1,5
24. Agar bo’lsa, nimaga teng?
A) 4-a B) 3-a C) 3- D) 2-a
25. a(b-c)-b(c-a)-c(b-a) ni soddalashtiring.
A) 2ab B) -2ac C) 2ab-2bc D) 0
26. ni soddalshtiring.
A) B)0 C) ab D) a-b
27. ni soddalashtiring.
A) b-1 B) –b-1 C) 1 D) b+1
28. 4. Amallarni bajaring:
A) B) C) D)
29. Kasrlarni bo`ling:
A) 1 B) C) D)
30. . Ifodaning son qiymatini toping: a³-a²b-3a+3b, bunda a=2,5; b=-1,5
A) 3,25 B) 13 C) -13 D) 5

Tuzuvchi:Mirjalol Tursunov