8- sinf Algebra I chorak


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IV chorak

  1. Tengsizliklar sistemasini yeching:

A) (6; 2,5) B) (-6; 2,5) C) (-6; -2,5) D) (6; -2,5) E) (-6; 0,4)

  1. Qo’sh tengsizlikni yeching: ;

A) [-1; 2,5] B) [-2; 1,5] C) [-2,5; 1] D) [-1,5; 2] E) [1; 2,5]

  1. Ildizning qiymatini toping:

A) 12,6 B) 1,26 C) 126 D) 1260 E) 0,126

  1. Ifodaning qiymatini toping:

A) B) C) D) E)

  1. Ildizning qiymatini toping:

A) 24 B) 12 C) 48 D) 96 E) 36



  1. Tenglamani yeching: 3x+0,4x2=0

A) B)-7,5; 0 C) 7,5; 0 D) E)

  1. Berilgan –3; -2; -1; 0; 2; 3 sonlardan qaysilari x2-2x-3=0 tenglamaning ildizlari bo’ladi?

A)( 3; -1) B) (-2; 4) C) (0; 2) D) (0; 4) E) (2; 4)

  1. Ildizlari 10 va 12 bo’lgan kvadrat tenglama tuzing

A) x2+22x+120=0 B) x2-22x+120=0 C) x2-22x-120=0 D) x2+22x-120=0
E) x2-12x-120=0

  1. Keltirilgan kvadrat tenglamani yeching, bunda: x2-6x+8=0

A) 2; –4 B) 2; 4 C) -2; 4 D) –2; -4 E) 3; 4

  1. To’la kvadrat tenglamani yeching: 5x2-13x+6=0

A) B) 2 C) D) E)

  1. Polizning maydoni to’g’ri to’rtburchak shaklida bo’lib, bir tomoni ikkinchisidan 20 m ortiq. Agar polizning yuzi 8000 m2 bo’lsa, uning tomonlari uzunliklarini toping.

A) 45x200 m B) 150x60 m C) 90x100 m D) 180x50 m E) 80x100 m

  1. Bikvadrat tenglamani yeching: x4+3x2-4=0

A) (1; 2) B) (1; -1), (2; -2) C) 2; -2 D) 1; -1 E) –1; -2

  1. Quyida berilgan sonlar juftidan qaysilari tenglamalar sistemasining yechimi bo’ladi?

A) (-2; 4) B) (-1; 1) C) (1; -1) D) (2; -4)
A) B; D B) B C) C; D D) A; B E) D

  1. Tenglamalar sistemasini yeching:

A) (1; 2); B) (9; -2); C) (1; -2); D) (9;2);
E) (1; 4);

  1. 2x2-3x-2 kvadrat uchhadni ko’paytuvchilarga ajrating.

A) (x-2)(2x+1) B) (x-2)(2x-1) C) (x+2)(2x+1) D) (x+2)(2x-1) E) (x+2)(2x-1)

  1. Tengsizliklar sistemasi butun yechuimlarining o’rta arifmetigini toping:

A) 3,5 B) 7 C) 4 D) 4 E)

  1. Tengsizlikning barcha natural yechimlarini toping:

A) 4; 5; 6 B) 5; 6; 7 C) 6; 7; 8 D) 7; 8 E) 4; 5; 6; 7

  1. Tengsizliklar sistemasining barcha butun yechimlari ko’paytmasini toping:

A) 2 B) 6 C) –6 D) –2 E) 0

  1. Tengsuizliklar sistemasining eng katta butun yechimin toping:

A) 4 B) 3 C) –11 D) –12 E) –10

  1. Tengsizlikni qanoatlantiruvchi eng kichik butun manfiy son nechaga teng:

A) –6 B) –7 C) –5 D) –4 E) –8

  1. Tengsizlik nechta butun yechimga ega: ?

A) 11 B) 10 C) 8 D) 7 E) 6

  1. Tengsizlikni yeching:

A) (-1; 1)U(3; 5) B) (-1; 1) C) (3; 5) D) (-1; 5) E) (0; 4)

  1. Tengsizlikni qanoatlantiradigan natural sonlarning eng kattasini toping:

A) 4 B) 3 C) 2 D) 1 E) 5

  1. Agar 2m+n=2; 2n+p=6 va 2p+m=4 bo’lsa, m+n+p ni toping

A) 6 B) 4 C) 5 D) 3 E) 8

  1. Tengsizliklar sistemasi nechta butun yechimga ega:

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