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descompuneri

Authored by lili botez

Mathematics

7th Grade

Used 6+ times

descompuneri
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16 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Descompunerea expresiei x2-1 este

(x+2)2

(x+1)2

(x+1)(x-1)

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Descompunerea expresiei 4x2+4x+1 este

(2x+1)2

(4x+2)2

(2x+1)(2x-1)

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Descompunerea expresiei 9x2-1 este

(3x+1)(3x-1)

( x-3)2

(x+3)2

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Pentru a descompune în factori expresia 4x2 -1 folosim:

factor comun

(a+b)(a-b)

(a-b)2

(a+b)2

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Pentru a descompune în factori expresia 9x2-6x+1 folosim:

factor comun

(a+b)(a-b)

(a-b)2

(a+b)2

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Pentru a descompune în factori expresia 10x -25x2 folosim:

factor comun

(a+b)(a-b)

(a-b)2

(a+b)2

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Descompunând în factori expresia 25x2 - 4 obținem

( 5x - 4)2

( 5x - 2)( 5x + 2)

( 5x - 4)( 5x + 4)

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