Kvadratlar ayirmasi — 7-sinf Algebra test savollari

Bu mavzuda 16 ta test savoli bor. Quyida 10 ta namuna — to'liq test va javoblar kaliti ro'yxatdan o'tgandan keyin ochiladi.

1.(3x - 5y)(3x + 5y) ko'paytmani toping.
- A) $9 x^{2} - 2 x - 25 y^{2}$
- B) $9 x^{2} - 25 y^{2}$
- C) $9 x^{2} - 23 y^{2}$
- D)- $9 x^{2} + 25 y^{2}$
2.(2a + 7)(2a - 7) ko'paytmani toping.
- A) $49 - 4 a^{2}$
- B) $4 a^{2} + 2 a - 49$
- C) $4 a^{2} - 2 a - 49$
- D) $4 a^{2} - 49$
3.(5 - 2x)(5 + 2x) ko'paytmani toping.
- A)- $4 x^{2} + 2 x + 25$
- B) $4 x^{2} - 25$
- C)- $4 x^{2} - 2 x + 25$
- D) $25 - 4 x^{2}$
4. $(x^{2} - 3) (x^{2} + 3)$ ko'paytmani toping.
- A) $x^{4} + 2 x - 9$
- B) $x^{4} - 9$
- C) $9 - x^{4}$
- D) $x^{4} - 2 x - 9$
5. $49 x^{2} - 81 y^{2}$ ni ko'paytuvchilarga ajrating.
- A) $49 x^{2} + 2 x - 81 y^{2}$
- B)(7x - 9y)(7x + 9y)
- C)-(7x - 9y)(7x + 9y)
- D) $49 x^{2} - 81 y^{2} - 4$
6.(x - 4)(x + 4) ko'paytmani toping.
- A) $x^{2} - 16$
- B) $x^{2} - 2 x - 16$
- C) $x^{2} + 2 x - 16$
- D) $16 - x^{2}$
7.(a + 6)(a - 6) ko'paytmani toping.
- A) $a^{2} - 2 a - 36$
- B) $a^{2} + 2 a - 36$
- C) $a^{2} - 36$
- D) $36 - a^{2}$
8.(2x - 3)(2x + 3) ko'paytmani toping.
- A) $9 - 4 x^{2}$
- B) $4 x^{2} - 2 x - 9$
- C) $4 x^{2} - 9$
- D) $4 x^{2} + 2 x - 9$
9.(x + 5)(x - 5) ko'paytmani toping.
- A) $x^{2} - 2 x - 25$
- B) $x^{2} + 2 x - 25$
- C) $25 - x^{2}$
- D) $x^{2} - 25$
10.(3a - 1)(3a + 1) ko'paytmani toping.
- A) $1 - 9 a^{2}$
- B) $9 a^{2} - 2 a - 1$
- C) $9 a^{2} + 2 a - 1$
- D) $9 a^{2} - 1$

«Kvadratlar ayirmasi» bo'yicha barcha 16 ta savolni javoblari bilan oling: Test Generator ularni variantlarga bo'ladi, DTM titulida chop etadi va javob varaqalarini rasm orqali tekshiradi.

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Kvadratlar ayirmasi — 7-sinf Algebra test savollari

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