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Výrazy - vytýkání 1

Authored by Jan Kučera

Mathematics

8th Grade

Used 49+ times

Výrazy - vytýkání 1
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte vše co jde:

 6+3a=6+3a=  

 3(2+a)3\left(2+a\right)  

 2(3+1a)2\left(3+1a\right)  

 6(1+2a)6\left(1+2a\right)  

 3(3+a)3\left(3+a\right)  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte:

 93b=9-3b=  



 3(6b)3\left(6-b\right)  

 3(3b)3\left(3-b\right)  

 6(1b)6\left(1-b\right)  

 9(1b)9\left(1-b\right)  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte:

 42a=-4-2a=  

 2(2a)2\left(2-a\right)  

 2(2a)-2\left(2-a\right)  

 2(2+a)-2\left(2+a\right)  

 4(1+a)-4\left(1+a\right)  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte:

 2ab3b=2ab-3b=   

 a(2b3)a\left(2b-3\right)  

 2(abb)2\left(ab-b\right)  

 b(2a+3)b\left(2a+3\right)  

 b(2a3)b\left(2a-3\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte:

 xy22xy=xy^2-2xy=   


 xy(y2)xy\left(y-2\right)  

 x(y22x)x\left(y^2-2x\right)  

 y(xy+2)y\left(xy+2\right)  

 xy(y+2)xy\left(y+2\right)  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte:

 8a34a2=8a^3-4a^2=  

 2a(4a2+2a)2a\left(4a^2+2a\right)  

 4a2(2a1)4a^2\left(2a-1\right)  

 4a(a21)4a\left(a^2-1\right)  

 2a2(4a+2)2a^2\left(4a+2\right)  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Vytkněte:

 t2s2ts =-t^2s^2-ts\ =   

 ts(ts1)-ts\left(ts-1\right)  

 ts(ts+1)ts\left(-ts+1\right)  

 ts(ts+1)-ts\left(ts+1\right)  

 ts(ts+1)ts\left(-ts+1\right)  

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