Termiz shahar 9-umumiy o’rta ta’lim maktabi 7-sinf o'quvchilari uchun test

Termiz shahar 9-umumiy o’rta ta’lim maktabi 7-sinf o'quvchilari uchun test
1.(x+3):(x-2)=5:3 tenglamaning ildizi x₀ bo’lsa,2x₀+61 ifodaning son qiymatini toping.

A) -80 B) 70 C) 80 D) 81 E) 90

2. Teng yonli uchburchakning perimetri 51 sm ga teng. Asos yon tomonidan 6 sm uzun. Shu uchburchak yon tomonining asosiga nisbatini toping.

A) 1,4 B)5/7 C)2/3 D)10/7 E) 0,7

3. Ko’phadlarni ko’paytiring: (a+2b)(a-2b)(a²+4b²)

A) a³-16b³ B) a⁴-8b³ C) a³-8b³ D)a⁴+16b⁴ E)a⁴-16b⁴

4. Kubning barcha qirralari uzunliklari yig'indisi 36 smga teng. Kub sirti yuzini toping.

A) 27sm² B) 1334sm² C)54sm² D)36sm² E)45sm²

5. Ko’paytuvchilarga ajrating: 4(x-y) +3(x-y)²

A) (a+b)(6+a+b) B)(x-y)(4+3x-3y) C)(a-b)(1+a-b)

D)(a-b)(a-b+1) E)(x+y)(4x-2y)

6. Ko’paytuvchilarga ajrating: 5(a-b)²-(b-a)(a+b)

A) (a-b)(6a-4b) B)(x+y)2y C)(a-b)2(a-1)

D)(12x2+6x)2y E)(y-z)24x2

7. Ko’paytuvchilarga ajrating: (y-z)(12x²-6x)+(y-z)(12x²+6x)

A) (a-b)(6a-4b) B)(x+y)2y C)(a-b)²(a-1)

D) (12x²+6x)2y E)(y-z)24x²

8.Algebraik ifodaning qiymatini toping bunda x= 3, y=6

(3x³+4x²y):x²-(10xy+15y²):(5y)

A)8 B)9 C)10 D)6 E)7

9. Algebraik ifodaning qiymatini toping bunda x= 3 , y= -2

(2xy²-5y³):y²+(12xy+6x²):(3x)

A)8 B)9 C)10 D)7 E)14

10. Ko’paytuvchilarga ajrating: 5(a-b)+a²(a-b)-3(b-a)

A) (a-b)(a²+2) B) (a-b)(a²-80) C) (a-b)(8-a²)

D) (a-b)(a²+8) E)(b-a)(a²-8)

11. Bo’lishni bajaring: (4a²b³-3ab³): (2ab³)

A) 2a-3b² B)2a-1,5 C)2a-1,5b² D)a- b² E) 3-1,5ab²

12. Ifodani soddalashtiring: (6a³-3a²):a²+(12a²+9a): a

A) 18a+6 B)x-1 C)6x-5y D) 10a E)7a+1

13. Ko’paytmani daraja shaklida yozing:

(-3b)(-3b)(-3b)(-3b)(-3b)(-3b)(-3b)

A) (-3b)⁵ B)-21b C) (-3b)⁴ D) 15b E) (-3b)⁷

14. Tenglamani yeching: (x+2)(x+3)-(x+1)²= -4

A)4 B)2 C)-3 D)3 E)6

15. Ifodaning son qiymatini toping.

7³ⁿ⁺⁴*7^n-3:7ⁿ⁺²

A)7⁴ⁿ⁺¹ B)7ⁿ C)7^3n-1 D)7⁶ⁿ⁺⁵ E)7^n-3

16. n ning qanday qiymatlarida tenglik to’g’ri bo’ladi.(3ⁿ)⁵=27⁵

A)5 B)4 C)10 D)3 E)6

17.Tenglamani yeching. 100:x=10⁴

A)100 B)10 C)1/100 D)1000 E)1/10

18. Ko’paytmaning darajasi formulasini yozing.

19. Ishchi 1 soatda 20 ta mahsulot tayyorlardi. U shunday unumdorlik bilan t soat ishladi.Keyin u soatiga avvalgisiga qaraganda 3 ta ko’p mahsulot bera boshladi.Bunday unumdorlik bilan u (t-2) soat ishladi. Agar jami 169 ta mahsulot tayyorlagan bo’lsa, t ni toping.

20. Yig’indining kubi formulasini yozing.

21. Birinchi kvadratning tomoni ikkinchi kvadrat tomonidan 3 sm uzun, yuzi esa 21 sm2 ga ortiq. Birinchi kvadrat perimetrining ikkinchi kvadrat perimetriga nisbatini toping.

22. Kvadratlar ayirmasi formulasini yozing.

23.Uchburchak ichki burchaklari 2:3:4 nisbatda bo’lsa, ularni toping.

24. . Istalgan sonning nolinchi darajasi nechaga teng?

25. ABC uchburchakning A uchdagi tashqi burchagi 110 , B burchagi 50 gradusga teng bo’lsa, C burchagini toping.

S	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17
J	C	B	E	C	B	A	B	B	E	D	B	A	E	C	C	D	C
B

18.(a*b)ⁿ=aⁿ*bⁿ

19. 5

20. (a+b)³=a³+3a²b+3ab²+b³

21. 0,4

22. a² -b²=(a-b)(a+b)

23. 40,60,80

24. 1

25. 60