Algebraik ifodalar va ayniyatlar — test savollari javoblari bilan
Matematika · 24 ta ochiq savol (bankda jami 120 ta) · har birida to'g'ri javob va izoh
1. $(a + 3)^2$ ni yoying.
- A) $a^2 + 9$
- B) $a^2 + 6a + 9$
- C) $a^2 + 3a + 9$
- D) $a^2 + 6a + 3$
Javobni ko'rish
To'g'ri javob: B) $a^2 + 6a + 9$
2. $(x - 5)^2$ ni yoying.
- A) $x^2 - 25$
- B) $x^2 - 5x + 25$
- C) $x^2 - 10x + 25$
- D) $x^2 + 10x + 25$
Javobni ko'rish
To'g'ri javob: C) $x^2 - 10x + 25$
3. $(a + 4)(a - 4)$ ni hisoblang.
- A) $a^2 - 16$
- B) $a^2 + 16$
- C) $a^2 - 8$
- D) $a^2 - 8a + 16$
Javobni ko'rish
To'g'ri javob: A) $a^2 - 16$
4. $49 - x^2$ ni ko'paytuvchilarga ajrating.
- A) $(49 - x)(49 + x)$
- B) $(7 - x)(7 + x)$
- C) $(x - 7)(x + 7)$
- D) $(7 - x)^2$
Javobni ko'rish
To'g'ri javob: B) $(7 - x)(7 + x)$
5. $(2x + 1)^2$ ni yoying.
- A) $4x^2 + 1$
- B) $4x^2 + 2x + 1$
- C) $4x^2 + 4x + 1$
- D) $2x^2 + 4x + 1$
Javobni ko'rish
To'g'ri javob: C) $4x^2 + 4x + 1$
6. $(3a - 2b)^2$ ni yoying.
- A) $9a^2 - 12ab + 4b^2$
- B) $9a^2 - 6ab + 4b^2$
- C) $9a^2 + 12ab + 4b^2$
- D) $3a^2 - 12ab + 2b^2$
Javobni ko'rish
To'g'ri javob: A) $9a^2 - 12ab + 4b^2$
7. $x^2 - 64$ ni ko'paytuvchilarga ajrating.
- A) $(x - 32)(x + 32)$
- B) $(x - 8)^2$
- C) $(x - 8)(x + 8)$
- D) $(x + 8)^2$
Javobni ko'rish
To'g'ri javob: C) $(x - 8)(x + 8)$
8. $101^2$ ni qisqa ko'paytirish formulasi yordamida hisoblang.
- A) $10001$
- B) $10201$
- C) $10101$
- D) $10200$
Javobni ko'rish
To'g'ri javob: B) $10201$
9. $(a + b)^2 - (a - b)^2$ ni soddalashtiring.
- A) $2ab$
- B) $4ab$
- C) $2a^2 + 2b^2$
- D) $0$
Javobni ko'rish
To'g'ri javob: B) $4ab$
10. $25x^2 + 10x + 1$ ni to'liq kvadrat ko'rinishda yozing.
- A) $(5x + 1)^2$
- B) $(5x - 1)^2$
- C) $(25x + 1)^2$
- D) $(x + 5)^2$
Javobni ko'rish
To'g'ri javob: A) $(5x + 1)^2$
Bu — mavzuning ochiq namuna qismi. To'liq bank, vaqt rejimi, tahlil va xatolar ustida ishlash — test rejimida.