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乘法公式(陳軒)

Authored by 蔡 丞軒

Mathematics

8th Grade

Used 2+ times

乘法公式(陳軒)
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

請問下列何者敘述錯誤?

和的平方: ()2=222\left(A+B\right)^2=A^2+2AB+B^2  

差的平方: ()2222\left(A-B\right)^2=A^2-2AB+B^2  

平方差: ()22\left(A+B\right)(A-B)=A^2-B^2  

陳軒好帥

2.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

請利用和的平方算出 5032503^2 



(a)  

3.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

請利用差的平方算出 3982398^2 



(a)  

4.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

請利用和的平方算出 42.82+2×42.8×57.2+57.2242.8^2+2\times42.8\times57.2+57.2^2 



(a)  

5.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

請利用和的平方算出 1972197×200+1002197^2-197\times200+100^2 



(a)  

6.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

請利用平方差算出 1082922108^2-92^2 



(a)  

7.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

請利用平方差算出601x599



(a)  

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