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Ispravak - potencije i algebarski

Authored by Daniela Usmiani

Mathematics

9th Grade

Used 6+ times

Ispravak  - potencije i algebarski
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20 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Potencije jednakih baza dijelimo tako

da eksponente prepišemo

da bazu prepišemo a eksponente podijelimo

da bazu prepišemo a eksponente oduzmemo

da baze oduzmemo a eksponente prepišemo

2.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Znanstveni zapis broja 0,0021 je:

21×10421\times10^{-4}

0,21×1020,21\times10^{-2}

2,1×1032,1\times10^{-3}

2,1×1022,1\times10^{-2}

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Koliko je  (11000)2\left(\frac{1}{1000}\right)^{-2}  

  

  

  
 

 10510^{-5}  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 3a2b4a3b2=3a^2b\cdot4a^3b^2=  

 12a5b312a^5b^3  

 12a5b212a^5b^2  

 7a5b37a^5b^3  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Koliko je   (x1)(x+2)\left(x-1\right)\cdot\left(x+2\right)  ?

 x22x^2-2  

 x2+x2x^2+x-2  

 x2+2xx^2+2x  

 x2x2x^2-x-2  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 2a+42\frac{2a+4}{2}  

 a+2a+2  

 a+42\frac{a+4}{2}  

 2a+22a+2  

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 3x19x21\frac{3x-1}{9x^2-1}  

 13x+1\frac{1}{3x+1}  

 13x1\frac{-1}{3x-1}  

 13x\frac{1}{3x}  

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