Tenglamani yeching. 0, 7(6y − 5) = 0, 4(y − 3) − 1, 16 A) 0, B) −3 C) −0, D) E) 30


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Test 3
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Test 3
1. Tenglamani yeching. 0, 7(6y − 5) = 0, 4(y − 3) − 1, 16
A) 0, 3 B) −3 C) −0, 3 D) 2 E) 30
2. x ni toping. 420 : (160 − 1000 : x) = 12
A) 8 B) 1 8 C) 35 D) 36 E) −8
3. ) Tenglamani yeching. 8 · ( + 1) · ( + 1) · ( + 1) · ... · ( + 1)· ·x = − 1
A) 1 B) 1 8 C) 1 2 D) −1 E) 2
4. ) Tenglamani yeching. x : 2, 0(6) = 0,(27) : 0, 4(09)
A) 1, 3 B) 1, 37 C) 1,(37) D) 1,(32) E) 1, 3(7)
5.

6. Tenglamaning nechta ildizi bor? x + 6 = −
A) 1 B) 2 C) 3 D) ildizi yo’q E) cheksiz ko’p
7. Ushbu 2 − 26x + 72 = 0 tenglama ildizlarining o’rta proportsiyanalini toping.
A) 4 B) 5 C) 7 D) 6 E) 8
8. 2 − 3x − 2 = 0 va 2 − 5x + 2 = 0 tenglamalarning umumiy ildizi 5 dan qancha kam?
A) 1, 5 B) 2 C) 2, 5 D) 3 E) 3, 5
9. Agar (x−5)·( 0,2 x+4) = 0 bo’lsa, 0,2x+4 qanday qiymatlar qabul qiladi?
A) faqat 0 B) faqat −20 C) 0 yoki 5 D) 0 yoki 8 E) −20 yoki 0
10. Kvadrat uchhadni chiziqli ko’paytuvchilarga ajrating. − 3x + 2
A) (x − 1)(x + 2) B) (x − 2)(x + 1) C) (x − 1)(x − 2) D) (x + 1)(x + 2) E) (1 − x)(x + 2)
11. Kasrni qisqartiring. A) B) C) D) E)
12. ) Agar + x − 1 = 0 tenglamaning ildizlari va bo’lsa, ning qiymati qanchaga teng bo’ladi?
A) 1 B) 3 C) 2 D) −2 E) −4
13. Agar + 2x + 1 = 0 tenglamaning ildizlari - ni hisoblang. A) 1 B) 3 C) 4 D) 0 E) -2
14. Tenglamaning ildizlari yig’indisi va ko’paytmasining yig’indisini hisoblang: 2 − 5x + 2 = 0
A) 2,5 B) 7 C) 2,8 D) 3,5 E) 3,2
15.(x+3)(x+4)(x+5)(x+8)=0. Tenglama ildizlari yeg’indisini toping.
A) 20 B) -20 C)15 D) -15 E) 0
TELEGRAM KANAL: @MATEMATIKA_MATH8



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