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avatar+683 

general question: how do i even write equivalent expressions to like a given expression?

the question for example asks for an equivalent expression if you are given 5^4x-3

(sorry i did not know how to write that in latex)

i have tried this question over 5 times and i still dont understand how it can be solved:

can someone please give me some hints, i don't want it to be solved i want to figure it out myself but i really don't know where to start.

thank you :3

 Jan 20, 2020
 #1
avatar+20428 
+5

There are LOTS of ways to write  equaivalent expressions.....is this   54x-3      ?

     =   54x / 53

       = 54x /125      are a couple equivalent expressions  

 Jan 20, 2020
 #2
avatar+683 
+1

would it be right if i divided up the powers and broke them down? 

btw thank you ep!! 

Nirvana  Jan 24, 2020
 #3
avatar+107554 
+2

Thanks EP

 

Firstly the expression you have written is not clear.

 

5^4x-3 

EP has interpretted this to mean   \(5^{4x-3}\)

 

Is this what you intended?  If so it should have been written as  5^(4x-3)

 

\(5^{4x-3}\\ =5^{4x}*5^{-3}\\ =(5^4)^x*\frac{1}{5^3}\\ =\frac{625^x}{125} \)

 

this is just another answer that is equivalent.

 Jan 24, 2020

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