Nevezetes szorzatok
Authored by Sándorné Pinczés Marianna
Mathematics
1st Grade
Used 59+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Melyikkel lesz egyenlő a (a+b)2 ?
a2+b2
a2+ab+b2
a2+2ab+b2
a+2ab+b
2.
MULTIPLE CHOICE QUESTION
30 sec • 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
30 sec • 1 pt
Melyikkel lesz egyenlő? (2x-2y)(2x+2y)=
4x+4y
4x2-4y2
4x2-xy-4y2
4y2+4x2
5.
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
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
(y-3)2
y2+9
y2-9
y2-6y+9
y-6y+9
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
d2 -10d +25
(d+5)2
(d+5)(d-5)
(d-10)2
(d-5)2
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