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Eksponencijalne jednadžbe

Authored by Dražena An

Mathematics

12th Grade

Used 40+ times

Eksponencijalne jednadžbe
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12 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Rješenje jednadžbe 82x+123=83x8^{2x+1}\cdot\sqrt{2^3}=8^{3x}  

 x=0.5x=0.5  

 x=1x=1  

 x=1.5x=1.5  

 x=2x=2  

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Rješenja jednadžbe 0.5x222x+2=6410.5^{x^2}\cdot2^{2x+2}=64^{-1}  su:

 x1=1,   x2=2x_1=-1,\ \ \ x_2=2  

 x1=3,   x2=1x_1=-3,\ \ \ x_2=1  

 x1=2,   x2=2x_1=-2,\ \ \ x_2=2  

 x1=2,   x2=4x_1=-2,\ \ \ x_2=4  

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Rješenje jednadžbe (53)x=925\left(\frac{5}{3}\right)^x=\frac{9}{25}  je:

 x=2x=-2  

 x=1x=-1  

 x=0x=0  

 x=1x=1  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Odredi x:

2

-2

3

-3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

32x – 6 = 81

x = 14\frac{1}{4}

x = 5

x = 4

x = -1

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Odredi x:

2x = 4x+1

x = -2

x = 2

x = -3

x = 3

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Odredi x:     98-x = 27x-3

x = 5

x = -5

x= 15\frac{1}{5}

x = 15-\frac{1}{5}

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