
Nevezetes szorzatok 9B
Authored by Eva S
Mathematics
9th - 12th Grade
Used 12+ times

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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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