38.1k views
24 votes
If (5^1/5)^5 = 25^x, then x = ?

User Zeograd
by
8.4k points

1 Answer

10 votes

Answer:

x = 1/2

Explanation:

The applicable rule of exponents is ...

(a^b)^c = a^(bc)

__

(5^(1/5))^5 = 25^x . . . . given

5^(1/5×5) = (5^2)^x . . . . simplify left side, rewrite right side

5^1 = 5^(2x) . . . . . . . . . simplify further

1 = 2x . . . . . . . . . . . . . equate exponents of the same base

x = 1/2 . . . . . . . . . . . divide by 2

_____

Additional comment

The Order of Operations tells you that exponentiation must be evaluated before multiplication or division. That means 5^1/5 is evaluated as ...

(5^1)/5 = 5/5 = 1

If you want a fractional exponent, it must be put in parentheses: 5^(1/5). If you type your expression into the Go.ogle calculator, it will strictly adhere to the Order of Operations.

If (5^1/5)^5 = 25^x, then x = ?-example-1
If (5^1/5)^5 = 25^x, then x = ?-example-2
User Kenfire
by
7.7k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories