Kvadratna jednadžba - usustavljivanje sadržaja

Kvadratna jednadžba - usustavljivanje sadržaja

8th - 12th Grade

7 Qs

quiz-placeholder

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Kvadratna jednadžba - usustavljivanje sadržaja

Kvadratna jednadžba - usustavljivanje sadržaja

Assessment

Quiz

Mathematics

8th - 12th Grade

Hard

Created by

Matija Trtinjak

Used 21+ times

FREE Resource

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Riješi jednadžbu  x2=4x^2=4  

 x=2x=2  

 x1=2,  x2=2x_1=2,\ \ x_2=-2  

 x=2x=-2  

 x1=4,  x2=4x_1=4,\ \ x_2=-4  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Riješi jednadžbu  x2=25x^2=-25  

 x1=5,   x2=5x_1=5,\ \ \ x_2=-5  

 x1=5i,   x2=5ix_1=5i,\ \ \ x_2=-5i  

 x1=5,   x2=5ix_1=-5,\ \ \ x_2=5i  

 x=5x=-5  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Riješi jednadžbu  2x2=32-2x^2=32  

 x1=4,   x2=4x_1=4,\ \ \ x_2=-4  

 x1=4,   x2=4ix_1=4,\ \ \ x_2=4i  

 x1=4i,   x2=4ix_1=4i,\ \ \ x_2=-4i  

 x1=16i,   x2=16ix_1=16i,\ \ \ x_2=-16i  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Riješi jednadžbu  3x23=243x^2-3=24  

 x1=3,   x2=9x_1=3,\ \ \ x_2=9  

 x=3x=3  

 x1=3i,   x2=3ix_1=3i,\ \ \ x_2=-3i  

 x1=3,   x2=3x_1=3,\ \ \ x_2=-3  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Jednadžba  x2+2x5=0-x^2+2x-5=0  ima koeficijente:

 a=0,  b=2,  c=5a=0,\ \ b=2,\ \ c=-5  

 a=1,  b=2,  c=5a=-1,\ \ b=2,\ \ c=5  

 a=1,  b=2,  c=5a=1,\ \ b=2,\ \ c=-5  

 a=1,  b=2,  c=5a=-1,\ \ b=2,\ \ c=-5  

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Riješi jednadžbu  x25x+6=0x^2-5x+6=0  

 x1=3,   x2=2x_1=3,\ \ \ x_2=-2  

 x1=2,   x2=3x_1=2,\ \ \ x_2=3  

 x1=1,   x2=2x_1=1,\ \ \ x_2=2  

 x1=2,   x2=2x_1=-2,\ \ \ x_2=2  

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Riješi jednadžbu  x24x+13=0x^2-4x+13=0  

 x1=3i,   x2=3ix_1=3i,\ \ \ x_2=-3i  

 x1=7,   x2=7x_1=7,\ \ \ x_2=-7  

 x1=2+3i,   x2=23ix_1=2+3i,\ \ \ x_2=2-3i  

 x1=1+i,   x2=1ix_1=1+i,\ \ \ x_2=1-i