Másodfokú egyenletek megoldása ránézésre Quiz

11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$\left(x+2\right)\left(x-1\right)=0$ Mi a megoldása?

-2 és +1

nincs megoldása

ebből nem lehet megállapítani

+2 és -1

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Ha a diszkrimináns pozitív, akkor

az egyenletnek 2 valós gyöke van.

az egyenletnek 1 valós gyöke van.

az egyenletnek 2 pozitív gyöke van.

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$x^2-1=0$ Mi a megoldása?

+1 és -1

+1

0

nincs megoldása

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$\left(x-7\right)\left(x-5\right)=0$ Mi a megoldása?

-7 és -5

+7 és +5

nincs megoldása

7

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$\left(x+1\right)^2=0$ Mi a megoldása?

-1

+1

-1 és +1

nincs megoldása

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$\frac{x^2}{2}=0$ Mi a megoldása?

0

+2

-2

nincs megoldása

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$\left(x+1\right)^2=1$ Mi a megoldása?

0 és -2

-1 és +1

+1 és -2

nincs megoldása

8.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$x^2+4=0$ Mi a megoldása?

nincs megoldása

-2 és +2

-4

0 és -4

9.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$x\left(x+3\right)=0$ Mi a megoldása?

0 és -3

0 és +3

nincs megoldása

-3 és +3

10.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

$\left(x+1\right)^2+1=0$ Mi a megoldása?

nincs megoldása

-1

+1

-1 és +1

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Másodfokú egyenletek megoldása ránézésre

(x+2)(x−1)=0\left(x+2\right)\left(x-1\right)=0(x+2)(x−1)=0 Mi a megoldása?

Ha a diszkrimináns pozitív, akkor

x2−1=0x^2-1=0x2−1=0 Mi a megoldása?

(x−7)(x−5)=0\left(x-7\right)\left(x-5\right)=0(x−7)(x−5)=0 Mi a megoldása?

(x+1)2=0\left(x+1\right)^2=0(x+1)2=0 Mi a megoldása?

x22=0\frac{x^2}{2}=02x2​=0 Mi a megoldása?

(x+1)2=1\left(x+1\right)^2=1(x+1)2=1 Mi a megoldása?

x2+4=0x^2+4=0x2+4=0 Mi a megoldása?

x(x+3)=0x\left(x+3\right)=0x(x+3)=0 Mi a megoldása?

(x+1)2+1=0\left(x+1\right)^2+1=0(x+1)2+1=0 Mi a megoldása?

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$\left(x+2\right)\left(x-1\right)=0$ Mi a megoldása?

$x^2-1=0$ Mi a megoldása?

$\left(x-7\right)\left(x-5\right)=0$ Mi a megoldása?

$\left(x+1\right)^2=0$ Mi a megoldása?

$\frac{x^2}{2}=0$ Mi a megoldása?

$\left(x+1\right)^2=1$ Mi a megoldása?

$x^2+4=0$ Mi a megoldása?

$x\left(x+3\right)=0$ Mi a megoldása?

$\left(x+1\right)^2+1=0$ Mi a megoldása?