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初二積的乘方

Authored by 蔡靖晴蔡靖晴 蔡靖晴蔡靖晴

Mathematics

8th Grade

Used 6+ times

初二積的乘方
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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列運算中正確的是

x2+x2=x4x^2+x^2=x^4

(a3)2=a6\left(-a^3\right)^2=a^6

(a2)3=a6\left(-a^2\right)^3=a^6

(a)3a5=a8\left(-a\right)^3\cdot a^5=a^8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 (3a)2\left(3a\right)^2  

 3a23a^2  

 9a29a^2  

 6a26a^2  

 92a29^2a^2  

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (2y)4\left(-2y\right)^4  

 8y48y^4  

 8y4-8y^4  

 16y416y^4  

 16y4-16y^4  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (a2bc3)2\left(-a^2bc^3\right)^2  

 a4bc6a^4bc^6  

 a4b2c3-a^4b^2c^3  

 a2bc4-a^2bc^4  

 a4b2c6a^4b^2c^6  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (3a2)3\left(-3a^2\right)^3  

 9a6-9a^6  

 27a6-27a^6  

 9a69a^6  

 27a627a^6  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (4x2yz5)2\left(4x^2yz^5\right)^2  

 8x4yz108x^4yz^{10}  

 8x4y2z108x^4y^2z^{10}  

 16x4yz216x^4yz^2  

 16x4y2z1016x^4y^2z^{10}  

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 (13a2b3)2\left(-\frac{1}{3}a^2b^3\right)^2  

 23a4b\frac{2}{3}a^4b  

 16a4b6\frac{1}{6}a^4b^6  

 19a4b6\frac{1}{9}a^4b^6  

 213a4b6-2\frac{1}{3}a^4b^6  

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