乘法公式

乘法公式

9th Grade

17 Qs

quiz-placeholder

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乘法公式

乘法公式

Assessment

Quiz

Mathematics

9th Grade

Medium

Created by

Karen Huang

Used 4+ times

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17 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (a+b)2=\left(a+b\right)^2=  

 a2+b2aba^2+b^2-ab  

 a2+b22aba^2+b^2-2ab  

 a2+ab+b2a^2+ab+b^2  

 2ab+a2+b22ab+a^2+b^2  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a2b2=a^2-b^2=  

 (ab)2\left(a-b\right)^2  

 (a+b)2\left(a+b\right)^2  

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

 a22ab+b2a^2-2ab+b^2  

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (a+b)3=\left(a+b\right)^3=  

 a3+3a2b+3ab2+b3a^3+3a^{2b}+3ab^2+b^3  

 a3+3ab+b3a^3+3ab+b^3  

 a3+a2b+ab2+b3a^3+a^2b+ab^2+b^3  

 a2+3a2b+3ab2++b3a^2+3a^2b+3ab^2++b^3  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a3+b3=a^3+b^3=  

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

 (a+b)(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)  

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

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a3b3=a^3-b^3=  

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

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

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

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

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

 (a+b)3\left(a+b\right)^3  

 (a+b)2\left(a+b\right)^2  

 (ab)3\left(a-b\right)^3  

 a3+b3a^3+b^3  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a2+b2+c2+2ab+2ac+2bc=a^2+b^2+c^2+2ab+2ac+2bc=  

 (a+b)2\left(a+b\right)^2  

 (a+b+c)2\left(a+b+c\right)^2  

 a2+b2+c2a^2+b^2+c^2  

 (a+b+c)2\left(a+-b+c\right)^2  

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