Need Help With This Exponential  TOPIC_SOLVED

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Need Help With This Exponential

Postby austinallexis on Wed Oct 31, 2012 9:40 pm

this one too: solve for x (2x-3 is exponent of 125)
125^2x-3=1
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Re: Need Help With This Exponential  TOPIC_SOLVED

Postby maggiemagnet on Thu Nov 01, 2012 8:53 pm

austinallexis wrote:this one too: solve for x (2x-3 is exponent of 125)
125^2x-3=1

They show how to solve exponential equations here. I would start by remembering the power that is necessary to turn the base into "1". So what must "2x - 3" be equal to? Then I'd set 2x - 3 equal to that value, and solve for x.
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