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4(2^(n-1))=16^n

 Aug 13, 2014

Best Answer 

 #2
avatar+130466 
+5

4(2(n-1))=16n

And we can write  4 as 22  and 16 as 24.....and we have....

22(2(n-1))=(24)n    ........and, by a property of exponents, we have

2(2 + n - 1) = 2(4n)

2( n + 1) = 2(4n)

And solving for the exponents, we have

n + 1  = 4n

1  = 3n

n = 1/3

 

 Aug 13, 2014
 #1
avatar+33654 
+5

Thiscanbewrittenas

2^2\times2^{n-1}=(2^4)^nor
2^{n+1}=2^{4n}Inotherwords$n+1=4n$or$n=13
$

.
 Aug 13, 2014
 #2
avatar+130466 
+5
Best Answer

4(2(n-1))=16n

And we can write  4 as 22  and 16 as 24.....and we have....

22(2(n-1))=(24)n    ........and, by a property of exponents, we have

2(2 + n - 1) = 2(4n)

2( n + 1) = 2(4n)

And solving for the exponents, we have

n + 1  = 4n

1  = 3n

n = 1/3

 

CPhill Aug 13, 2014

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