Descompunerea în factori prin folosirea formulelor de calcul prescurtat

Descompunerea în factori prin folosirea formulelor de calcul prescurtat

8th Grade

10 Qs

quiz-placeholder

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Descompunerea în factori prin folosirea formulelor de calcul prescurtat

Descompunerea în factori prin folosirea formulelor de calcul prescurtat

Assessment

Quiz

Mathematics

8th Grade

Easy

Created by

Boldea Daniela

Used 33+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Prin restrângere,  a2+2ab+b2a^2+2\cdot a\cdot b+b^2  devine

 (ab)2\left(a-b\right)^2  

 (a+b)2\left(a+b\right)^2  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Prin restrângere, expresia   a22ab+b2a^2-2\cdot a\cdot b+b^2  devine

 (ab)2\left(a-b\right)^2  

 (a+b)2\left(a+b\right)^2  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Expresia  a2b2a^2-b^2  se descompune  în

 (ab)2\left(a-b\right)^2  

 (ab)(a+b)\left(a-b\right)\cdot\left(a+b\right)  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 x2+4x+4x^2+4x+4 =

 (x+2)2\left(x+2\right)^2  

 (x2)2\left(x-2\right)^2  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 x26x+9 =x^2-6x+9\ =  

 (x3)2\left(x-3\right)^2  

 (x+3)2\left(x+3\right)^2  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 a264=a^2-64=  

 (a8)2\left(a-8\right)^2  

 (a8)(a+8)\left(a-8\right)\cdot\left(a+8\right)  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

4x2 + 12x + 9

descompus în factori:

(4x+9)2

(2x+3)2

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