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1 vote
Solve.
(5√5​)⁻²ˣ⁺¹=1/5​⋅125ˣ⁻³
x = ___

1 Answer

5 votes

Final answer:

To solve the given equation, rewrite the expressions with simplified forms, equate the two sides, take the logarithm of both sides, simplify further, and finally solve for x.

Step-by-step explanation:

To solve the given equation, we need to simplify both sides. Let's start with the right side of the equation:




  1. 1/5 multiplied by 125 gives us 125/5, which simplifies to 25.

  2. x raised to the power of -3 can be written as 1/x^3.



Now, let's simplify the left side of the equation:




  1. 5√5 raised to the power of -2x+1 can be written as (1/5√5)^(2x+1).



Now, we can equate the simplified expressions:



(1/5√5)^(2x+1) = 25 * (1/x^3)



To solve for x, we can take the logarithm of both sides:



log((1/5√5)^(2x+1)) = log(25 * (1/x^3))



Using logarithm properties, we can bring down the exponent:



(2x+1) * log(1/5√5) = log(25) + log(1/x^3)



Simplifying further:



(2x+1) * log(1/5√5) = log(25) - 3 * log(x)



Now, we can solve for x by isolating it:



2x+1 = (log(25) - 3 * log(x)) / log(1/5√5)



Finally, we can solve this equation for x using algebraic techniques.

User Mmuzahid
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