Sonning moduli. Modul qatnashgan tenglama va tengsizliklar — 8-sinf Algebra test savollari

1.|2x − 3| = 7 tenglamani yeching.

• A)x₁ = 5, x₂ = −2
• B)x₁ = 5, x₂ = 2
• C)x = 5 (bitta ildiz)
• D)x₁ = −5, x₂ = 2

2.|4 − x| = 9 tenglamani yeching.

• A)x₁ = −5, x₂ = 13
• B)x₁ = 5, x₂ = −13
• C)x₁ = 5, x₂ = 13
• D)x = 13 (bitta ildiz)

3.|3x + 2| ≥ 8 tengsizlikni yeching.

• A)$x\le -\frac{10}{3}$ yoki x ≥ 2
• B)$-\frac{10}{3}\le x\le 2$
• C)x ≥ 2
• D)$x\le -\frac{10}{3}$

4.|5 − 2x| > 3 tengsizlikni yeching.

• A)x < 1 yoki x > 4
• B)1 < x < 4
• C)x > 4
• D)x < 1

5.|2x − 1| < 5 tengsizlikni yeching.

• A)−2 < x < 3
• B)x < −2 yoki x > 3
• C)−2 ≤ x ≤ 3
• D)0 < x < 3

6.|x + 5| ≤ 3 tengsizlikni yeching.

• A)−8 ≤ x ≤ −2
• B)−8 < x < −2
• C)x ≤ −2
• D)x ≥ −8

7.|x| = 7 tenglamaning ildizlarini toping.

• A)x₁ = 7, x₂ = −7
• B)x = 7 (bitta ildiz)
• C)x = 0
• D)ildizi yo‘q

8.|x| ≤ 2,5 tengsizlik qanday qo‘sh tengsizlikka teng kuchli?

• A)−2,5 ≤ x ≤ 2,5
• B)x ≤ 2,5
• C)x ≥ −2,5
• D)−2,5 < x < 2,5

9.Manfiy sonning moduli qanday topiladi?

• A)unga qarama-qarshi songa teng
• B)shu sonning o‘ziga teng
• C)har doim nolga teng
• D)shu sonning kvadratiga teng

10.|0| ifodaning qiymati nechaga teng?

• A)0
• B)1
• C)aniqlanmagan
• D)−1