เลขยกกำลัง

เลขยกกำลัง

8th Grade

15 Qs

quiz-placeholder

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เลขยกกำลัง

เลขยกกำลัง

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

suntaraphon oonwannadham

Used 7+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 12a3b103a5b3\frac{12a^{-3}b^{-10}}{3a^5b^3}  มีค่าเท่ากับข้อใด

 22a3b132^2a^{-3}b^{-13}  

 22a8b132^2a^{-8}b^{-13}  

 22a8b132^2a^8b^{13}  

 22a8b132^2a^8b^{-13}  

2.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

ข้อใดถูกต้อง

5a2=25a2\lceil5a\rceil^2=25a^2

(33)2=35\left(3^3\right)^2=3^5

(73)2=176\left(7^{-3}\right)^{-2}=\frac{1}{7^6}

(52×42)=204\left(5^2\times4^2\right)=20^4

3.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (53)4×(54)3(52)12×55\frac{\left(5^{-3}\right)^4\times\left(5^4\right)^{-3}}{\left(5^2\right)^{12}\times5^{-5}}  มึค่าเท่าใด

 555^{-5}  

 5255^{25}  

 5535^{-53}  

 5435^{-43}  

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 276×93814×34\frac{27^6\times9^3}{81^4\times3^4}  มีค่าเท่าใด

77

79

81

83

5.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (9)2x+1×32\left(9\right)^{2x+1}\times3^2  มีค่าเท่าใด

 (3)4x+3\left(3\right)^{4x+3}  

 (3)2x+3\left(3\right)^{2x+3}  

 (3)4x+4\left(3\right)^{4x+4}  

 (3)2x+4\left(3\right)^{2x+4}  

6.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 33n1×32n132n+1×3n1\frac{3^{3n-1}\times3^{2n-1}}{3^{2n+1}\times3^{n-1}}  มีค่าเท่าใด

 32n+33^{2n+3}  

 3n+13^{n+1}  

 32n23^{2n-2}  

 33n+33^{3n+3}  

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

 (a2bc2)3×(ab3c3)2a6b3c\frac{\left(a^{-2}bc^{-2}\right)^3\times\left(ab^3c^3\right)^{-2}}{a^6b^3c^{ }}  มึค่าเท่าใด

 a14b6c13a^{-14}b^{-6}c^{-13}  

 a14b6c13a^{14}b^6c^{13}  

 a14b6a^{14}b^{-6}  

 a6b14a^6b^{-14}  

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