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How to find the solution of this inequality (log) ?

0 votes
(1/3)^(2x+1) < [27/3^(x-1)]
asked Jun 10, 2014 in ALGEBRA 2 by anonymous

1 Answer

0 votes

The exponential inequality is image.

Rewrite 27 as 33.

image.

Apply power of a quotient property :

image.

image

image.

Apply Property of Inequality for Exponential Functions : Let b > 1. Then bx < by if and only if x < y.

image

Add 2x to each side.

image

image

Subtract 4 from each side.

image

image.

The solution set is image.

 

answered Jun 10, 2014 by casacop Expert

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