Kvadratické rovnice

Kvadratické rovnice

9th Grade

10 Qs

quiz-placeholder

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Kvadratické rovnice

Kvadratické rovnice

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

Created by

Magdalena Gažarová

Used 5+ times

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Určete součet kořenů rovnice  4x2+2x=04x^2+2x=0  

0

 12-\frac{1}{2}  

2

-2

2.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Určete, která z rovnic je kvadratická.

x3+5x2x+1=0x^3+5x^2-x+1=0

22x5=02^2x-5=0

x2x=5-x^2-x=5

8x2=78x-2=7

3.

FILL IN THE BLANK QUESTION

20 sec • 1 pt

Řešte rovnici:  x18x2=0x-\frac{1}{8}x^2=0  Napište kořeny rovnice oddělené středníkem!

4.

FILL IN THE BLANK QUESTION

20 sec • 1 pt

Řešte rovnici:  414x2=04-\frac{1}{4}x^2=0  Napište kořeny rovnice oddělené středníkem!

5.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Vyberte správný vzorec pro výpočet Diskriminantu kvadratické rovnice.

D=b24aD=b^2-4a

D=b4acD=b^{ }-4ac

D=b24acD=b^2-4ac

D=a24bcD=a^2-4bc

6.

FILL IN THE BLANK QUESTION

30 sec • 1 pt

Řešte rovnici  x23x4=0x^2-3x-4=0  Kořeny zapište oddělené středníkem.

7.

MULTIPLE CHOICE QUESTION

10 sec • 1 pt

Vyberte ze zadání Ryze kvadratickou rovnici.

x24=0x^2-4=0

x24x=0x^2-4x=0

x24x4=0x^2-4x-4=0

3x22x+1=03x^2-2x+1=0

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