Қысқаша көбейту формулалары

Қысқаша көбейту формулалары

7th Grade

10 Qs

quiz-placeholder

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Қысқаша көбейту формулалары

Қысқаша көбейту формулалары

Assessment

Quiz

Mathematics

7th Grade

Practice Problem

Hard

Created by

Ryskan Janbyrov

Used 15+ times

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10 questions

Show all answers

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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