
Қысқаша көбейту формулалары
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
Ryskan Janbyrov
Used 15+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Көбейткіштерге жікте: x3 - y3
(x-y)(x+y)
x3-3x2y+3xy2-x3
(x-y)(x2+xy+y2)
x2-2xy+y2
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Есепте: 29,8*30,2
899,96
89 996
8, 9996
8 999,6
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
2х пен 3у-тің қосындысының кубын көпмүше түріне жаз
(2х+3у)2 =4x2+12xy+9y2
(2х+3у)3=8x3+36x2y+54xy2+27y3
(2x)3+(3y)3=(2x+3y)(4x2-6xy+9y2)
(2x-3y)(2x+3y)
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Кубтық параболаның формуласын көрсетіңіз.
y=ax2
y=k/x
y=ax3
y=kx+l
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Өрнекті ықшамда: (a+1)(a2-a+1)-a3
1
2a3
-1
2a3+1
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Екі өрнектің кубтарының қосындысының формуласы
(x+y)3 =x3+3x2y+3xy2+y3
x3+y3=(x+y)(x2-xy+y2)
(x+y)2 =x2+2xy+y2
x3-y3=(x-y)(x2+xy+y2)
7.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Дұрыс жазылған формулаларды тап.
x2+y2=(x+y)(x-y)
(x-y)2=(x-y)(x+y)
x3-y3=x3-3x2y+3xy2-y3
(x-y)3=x3-3x2y+3xy2-y3
(x+y)2=x2+2xy+y2
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