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Nevezetes szorzat sziget

Authored by András Dézsi

Mathematics

9th Grade

Used 25+ times

Nevezetes szorzat sziget
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16 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Melyikkel lesz egyenlő az (a+b)2 ?

a2+b2

a2+ab+b2

a2+2ab+b2

a+2ab+b

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Melyik a helyes?

(a+b)(a-b)=a2-b2

(a-b)(a+b)=a2+ab+b2

(a+b)(a-b)=a2-2ab-b2

(a+b)(a-b)=a2+2ab+b2

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Mivel egyenlő (4x-7)(4x+7)=?

16x²-49

4x²+56x-49

16x²-49x-49

4x²-49

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Melyikkel lesz egyenlő

 (2xy)(2x+y)=\left(2x-y\right)\left(2x+y\right)=  ?

 4xy4x-y  

 4x2y24x^2-y^2  

 4x22xyy24x^2-2xy-y^2  

 4y2+x24y^2+x^2  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 (10d+6)2=?\left(10d+6\right)^2=?  

 100d2+120d+36100d^2+120d+36  

 100d2+36100d^2+36  

 100d236100d^2-36  

 100d2120d+36100d^2-120d+36  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (4y6+3z2)(4y63z2)\left(4y^6+3z^2\right)\left(4y^6-3z^2\right)  

 16y129z416y^{12}-9z^4  

 16y12+9z416y^{12}+9z^4  

 16y369z416y^{36}-9z^4  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

(3x+7)²

9x²+42x+49

3x²+44x+49

9x²+49

3x²+49

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