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ταυτότητες γ γυμνασίου

Authored by ELENI sifaki

Mathematics

9th Grade

Used 9+ times

ταυτότητες γ γυμνασίου
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10 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

η παράσταση (3x - 2)2 ισούται με

3x2 + 12x + 4

3x2 - 12x + 4

9x2 - 4

9x2 - 12x + 4

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

η παράσταση (x5 - 1)(x5 + 1) ισούται με

x10 + 1

x10 - 1

x25 - 1

x7 - 1

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

η παράσταση (2x2 + 3)2 ισούται με

4x2 + 12x + 9

2x4 + 12x2 + 9

4x4 + 9

4x4 + 12x2 + 9

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

η παράσταση:

 (x + 1x)2\left(x\ +\ \frac{1}{x}\right)^2  


ισούται με

 x2+2+1x2x^2+2+\frac{1}{x^2}  

 x2+1x2x^2+\frac{1}{x^2}  

 x+1x+2x+\frac{1}{x}+2  

 x2+1x22x^2+\frac{1}{x^2}-2  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

η παράσταση:

 (3  2)(3+2)\left(3\ -\ \sqrt{2}\right)\left(3+\sqrt{2}\right)  
ισούται με

1

7

-1

 929-\sqrt{2}  

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

η παράσταση:

20222 - 20212

ισούται με

4043

1

4088483

40432

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

η παράσταση:

(x - 3)3 + 9(x - 2)2 + 9(x - 1)

ισούται με

10x2 - 33x + 36

x3 + 9x2 + 9x - 64

x3

x3 - 18x2 + 36x

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