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For each sentence below, find the value of x that makes each sentence true.

(5 ^1/5) ^5 = 25^x x = ____^a0
(8 ^1/3) ^2 = 4^ x x = ____ ^a1

User Pawelo
by
5.3k points

2 Answers

5 votes

Answer:

It's 1/2 and then 1

Explanation:

The answer above should have a 5-strar rating. I chose 1/2 and 1 as the answer and I got it right.

Hope I helped:)

Have a great day!!!

User Estradiaz
by
5.4k points
5 votes

ANSWER

1.
x=(1)/(2)


2.
x=1


QUESTION 1

The first sentence is
(5^{(1)/(5)})^5=25^x.


Recall that;


(a^m)^n=a^(mn)


We simplify the left hand side by applying this property to get;



5^{(1)/(5)* 5}=25^x.



\Rightarrow 5^(1)=25^x.


We now rewrite the right hand side too in an index form to obtain;



\Rightarrow 5^(1)=5^(2x)

We now equate the exponents to get;


\Rightarrow 1=2x.



\Rightarrow (1)/(2)=x



\Rightarrow x=(1)/(2).


QUESTION 2

The second sentence is
(8^{(1)/(3)})^2=4^x


We simplify the left hand side first to get;


(2^{3* (1)/(3)})^2=4^x



2^2=4^x


We now rewrite the left hand side too in index form to obtain;



2^2=2^(2x)

We equate the exponents to get;


2=2x


This implies that;



1=x

or


x=1

User Jacob Knobel
by
5.3k points