Հանրահաշիվ 7-րդ դաս. Կրճատ բազմապատկման բանաձևեր

Quiz
•
Mathematics
•
7th Grade
•
Hard
Գոհար Ալոյան
Used 44+ times
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10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
1.Նշի՛ր երկու թվերի գումարի քառակուսին.
(a - b )2
(a - b)3
( a + b)2
-(a + b)2
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
2.Նշի՛ր երկու թվերի տարբերության քառակուսին:
(a - b)2
a2 - b2
a2 + b2
(a + b)2
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
3.Նշի՛ր երկու թվերի քառակուսիների տարբերությունը :
(a - b)2
(a + b)2
a2 - b2
a2+ b2
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
4.Նշի՛ր ճիշտ հավասարությունը:
(x - y)2= x2 + y2 + 2xy
(x - y)2= x2 - 2xy - y2
(x - y)2= x2 + y2 - 2xy
(x - y)2= x2 -y2 + 2xy
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
5.Նշի՛ր ճիշտ հավասարությունը:
(x +y)2= x2 - y2 - 2xy
(x+ y)2= x2 -y2 + 2xy
(x + y)2= x2 + y2 - 2xy
(x + y)2= x2 + 2xy + y2
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
6.Նշի՛ր ճիշտ հավասարությունը:
x2 - y2 = (x - y) (x +y)
x2 - y2 = (x + y) (x +y)
x2 - y2 = x2 + xy + y2
x2 - y2 = x2 - xy - y2
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
7.Հաշվի'ր (b+3)2
b2 + 9b+9
b2 + 6b+9
b2 + 9b+18
b2 + 9b+6
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