Free Printable 7b sinf

1.

$\left(a+b\right)^3$ formulasini ko'rsating.

a)

$a^3+3ab+3ab+b^3$

b)

$a^3+3a^2b+3ab^2+b^3$

c)

$a^3+b^3$

d)

$a^2+2ab+b^2$

2.

$\left(a-b\right)^3$ formulasini ko'rsating.

a)

$a^3-3ab+3ab-b^3$

b)

$a^3-b^3$

c)

$a^3-3a^2b+3ab^2-b^3$

d)

$a^2-2ab+b^2$

3.

$\left(a+b\right)^2$ formulasini ko'rsating.

a)

$a^2+2ab+b^2$

b)

$a^2-2ab+b^2$

c)

$a^3-3a^2b+3ab^2-b^3$

d)

$a^3+3a^2b+3ab^2+b^3$

4.

$\left(a-b\right)^2$ formulasini ko'rsating.

a)

$a^2-2ab+b^2$

b)

$a^2+2ab+b^2$

c)

$a^2-b^2$

d)

$a^2-3a^2b+3ab^2-b^3$

5.

$a^2-b^2$ formulasini ko'rsating.

a)

$\left(a-b\right)\left(a+b\right)$

b)

$\left(a-b\right)^2$

c)

$a^2-2ab+b^2$

d)

$a^3-3a^2b+3ab^2-b^3$

6.

(2a-3b)(2a+3b) hisoblang.

a)

$4a^2-9b^2$

b)

$4a-9b$

c)

$2a^2-3b^2$

d)

$3a^2-4b^2$

7.

$\left(a-2b\right)^2$ hisoblang.

a)

$a^2-4ab+4b^2$

b)

$a^2-2ab+b^2$

c)

$a^2-4ab+b^2$

d)

$a^2-4ab+2b^2$

8.

$\left(a^2-3b^2\right)\left(a^2+3b^2\right)$

a)

$a^4-9b^4$

b)

$a^2-3b^2$

c)

$\left(a-3b\right)\left(a+3b\right)$

d)

$a^2-9b^2$

9.

$\left(a^2-b\right)^2=a^4-...+b^2$ nuqtalar o'rniga qanday birhad bo'lishi kerak?

a)

$2a^2b$

b)

$2ab$

c)

$4ab$

d)

$4a^2b$

10.

$\left(3a-b\right)^3=...-27a^2b+9ab^2-b^3$ nuqtalar o'rniga qanday birhad bo'lishi kerak?

a)

$27a^3$

b)

$27a$

c)

$a^3$

d)

$3a^3$

7b sinf

Total questions: 10

Worksheet time: 8mins

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