формулы сокращенного умножения

формулы сокращенного умножения

7th Grade

14 Qs

quiz-placeholder

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формулы сокращенного умножения

формулы сокращенного умножения

Assessment

Quiz

Mathematics

7th Grade

Medium

Created by

Елена Григорьева

Used 13+ times

FREE Resource

14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

(5-a)(5+a)=

a2+25

25-a

25-a2

a2-5

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Преобразуйте выражение в многочлен : (5у+2х)2

2+10ху+2х2

25у2+10ху+4х2

25у2+20ху+4х2

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Разложите на множители многочлен 16-x2

(2-x)(2+x)

(4-x)(4+x)

(4+x)(4+x)

(x-4)(x+4)

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Найди ошибку:

(5+3с)2= 25+30с+ 9с2

(2b2-1)2= 4b2-1

(2b+7cd)(7cd-2b)= 49c2d2- 4b2

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Возвести в квадрат разность 2у-3

2-12у+9

2+12у+9

2-12у-9

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Преобразуйте выражение в многочлен : (5у+2х)2

2+10ху+2х2

25у2+10ху+4х2

25у2+20ху+4х2

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Представьте в виде многочлена:

(6-2m)2

36-24m+4m2

36+24m+4m2

6-12m+2m2

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