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2A 班 數 學 大 比 拼 !!

Authored by 陳欣琪Chan Ki

Mathematics

1st - 6th Grade

Used 5+ times

2A 班 數 學 大 比 拼 !!
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14 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 2(a+b) = 2\left(a+b\right)\ =\   

 2a+2b2a+2b  

 2a+b2a+b  

 a+2ba+2b  

 a2+b2a^2+b^2  

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many terms does the expression 2a2+4abb22a^2+4ab-b^2   have?

1

2

3

4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (a+b)2 \left(a+b\right)^2\ \equiv  

 a2+b2a^2+b^2  

 a2b2a^2-b^2  

 a2+2ab+b2a^2+2ab+b^2  

 a22ab+b2a^2-2ab+b_{ }^2  

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a22ab+b2a^2-2ab+b^2\equiv  

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

 (a+b)2\left(a+b\right)^2  

 (ab)2\left(a-b\right)^2  

 (a2+b2)\left(a^2+b^2\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

 a2+b2a^2+b^2  

 a2b2a^2-b^2  

 (a+b)2\left(a+b\right)^2  

 (ab)2\left(a-b\right)^2  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (4x+1)(x2)=\left(4x+1\right)\left(x-2\right)=  

 5x15x-1  

 4x34x-3  

 4x27x24x^2-7x-2  

 4x2+7x24x^2+7x-2  

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 16y+26y =\frac{1}{6y}+\frac{2}{6y}\ =  

 312y\frac{3}{12y}  

 312y-\frac{3}{12y}  

 36y\frac{3}{6y}  

 36y-\frac{3}{6y}  

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