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王子說乘法公式你有沒有在聽?

Authored by 王 元松

Mathematics

8th Grade

Used 7+ times

王子說乘法公式你有沒有在聽?
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10 questions

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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

 (4x)272\left(4x\right)^2-7^2  

 (2x7)(2x+7)\left(2x-7\right)\left(2x+7\right)  

 (4x+7)2\left(4x+7\right)^2  

 (4x7)(4x+7)\left(4x-7\right)\left(4x+7\right)  

以上皆非

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x22×x×5+52x^2-2\times x\times5+5^2  

 (x+5)2\left(x+5\right)^2  

 (x5)2\left(x-5\right)^2  

 (x25)2\left(x-25\right)^2  

 (x5)(x+5)\left(x-5\right)\left(x+5\right)  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x22x+1x^2-2x+1  

 (x+1)2\left(x+1\right)^2  

 (x1)2\left(x-1\right)^2  

 (x+1)(x1)\left(x+1\right)\left(x-1\right)  

以上皆非

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 a2+8a+16a^2+8a+16  

 (a+4)2\left(a+4\right)^2  

 (a+16)2\left(a+16\right)^2  

 (a+4)(a4)\left(a+4\right)\left(a-4\right)  

以上皆非

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x225x^2-25  

 (x5)2\left(x-5\right)^2  

 (x25)2\left(x-25\right)^2  

 (x5)(x+5)\left(x-5\right)\left(x+5\right)  

以上皆非

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