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Nevezetes szorzatok 9B

Authored by Eva S

Mathematics

9th - 12th Grade

Used 12+ times

Nevezetes szorzatok 9B
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19 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Mivel lesz egyenlő a (7x-y)2

42x2-14xy+y2

49x2-14xy+y2

49x2+14xy+y2

42x2-7xy+y2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Melyikkel NEM egyenlő a (2a+3b)2 ?

4a2+12ab+9b2

4a2+6ab+6ab+9b2

(2a)2+12ab+(3b)2

4a2+6ab+9b2

3.

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

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Melyik a helyes? (4x+2y)2=

16x2+8xy+4y2

16x2+16xy+2y2

16x2+8xy+y2

16x2+16xy+4y2

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Melyikkel lesz egyenlő? (2x-2y)(2x+2y)=

4x+4y

4x2-4y2

4x2-xy-4y2

4y2+4x2

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Melyikkel lesz egyenlő? (2x-0,5y)2

4x2-2xy+0,25y2

4x2-8xy+2y2

2x2-4xy+2y2

4x2-6xy+4y2

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Melyikkel NEM lesz egyenlő? (2a-8b)(2a+8b)=

4a2-64b2

4a2-(8b)2

(2a)2-(8b)2

a2-4b2

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