Kiểm tra Đại số 8

Kiểm tra Đại số 8

8th Grade

23 Qs

quiz-placeholder

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Kiểm tra Đại số 8

Kiểm tra Đại số 8

Assessment

Quiz

Mathematics

8th Grade

Medium

Created by

Tâm Thanh

Used 19+ times

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23 questions

Show all answers

1.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 (a+b)2=\left(a+b\right)^2=  

 a2+b2+2aba^2+b^2+2ab  

 a2+b22aba^2+b^2-2ab  

 a2+2ab+b2a^2+2ab+b^2  

 a2+ab+b2a^2+ab+b^2  

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 (ba)2=\left(b-a\right)^2=  

 a22abb2a^2-2ab-b^2  

 a2+b22aba^2+b^2-2ab  

 b22ab+a2b^2-2ab+a^2  

 (ba)(a+b)\left(b-a\right)\left(a+b\right)  

 a2+b22ab-a^2+b^2-2ab  

3.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

 b2a2=b^2-a^2=  

 (ab)(a+b)\left(a-b\right)\left(a+b\right)  

 (ba)(a+b)\left(b-a\right)\left(a+b\right)  

 (ba)(b+a)\left(b-a\right)\left(b+a\right)  

 b22ab+a2b^2-2ab+a^2  

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 (a+b)3\left(a+b\right)^3  

 a3+3a2b+3ab2+b3a^3+3a^2b+3ab^2+b^3  

 a3+2a2b+2ab2+b3a^3+2a^2b+2ab^2+b^3  

 (a+b)(a2ab+b2)\left(a+b\right)\left(a^2-ab+b^2\right)  

 (ab)(a2+ab+b2)\left(a-b\right)\left(a^2+ab+b^2\right)  

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 (ab)3\left(a-b\right)^3  =

 a33a2b+3ab2b3a^3-3a^2b+3ab^2-b^3  

 a3+3a2b3ab2b3a^3+3a^2b-3ab^2-b^3  

 (ab)(a2+ab+b2)\left(a-b\right)\left(a^2+ab+b^2\right)  

 (a+b)(a2ab+b2)\left(a+b\right)\left(a^2-ab+b^2\right)  

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 a3+b3=a^3+b^3=  

 (a+b)(a2ab+b2)\left(a+b\right)\left(a^2-ab+b^2\right)  

 (ab)(a2+ab+b2)\left(a-b\right)\left(a^2+ab+b^2\right)  

 a3+3a2b+3ab2+b3a^3+3a^2b+3ab^2+b^3  

 (a2+b2)(aab+b)\left(a^2+b^2\right)\left(a-ab+b\right)  

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

 a3b3a^3-b^3  

 (ab)(a2+ab+b2)\left(a-b\right)\left(a^2+ab+b^2\right)  

 (a+b)(a2ab+b2)\left(a+b\right)\left(a^2-ab+b^2\right)  

 a33a2b+3ab2b3a^3-3a^2b+3ab^2-b^3  

 (a2b2)(a+ab+b)\left(a^2-b^2\right)\left(a+ab+b\right)  

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