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A student simplified the expression 9^2 over 81^2 as 1 over 8. Do you agree with this student? Explain. 

 Jan 4, 2017

Best Answer 

 #1
avatar+37091 
+5

9^2  /  81^2   =   81/81^2  =  81^1 / 81^2  =  81 / ((81)(81)) = 1/81 

 Jan 4, 2017
 #1
avatar+37091 
+5
Best Answer

9^2  /  81^2   =   81/81^2  =  81^1 / 81^2  =  81 / ((81)(81)) = 1/81 

ElectricPavlov Jan 4, 2017
 #2
avatar+14985 
+5

A student simplified the expression 9^2 over 81^2 as 1 over 8. Do you agree with this student? Explain. 

 

\(\frac{9^2}{81^2}=(\frac{9}{81})^2=(\frac{1}{9})^2=\frac{1}{81}\)

 

I do not agree with this student.

 

laugh  !

 Jan 4, 2017
edited by asinus  Jan 4, 2017
edited by asinus  Jan 4, 2017

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