How do you solve \sqrt { 125} = 5^ { x }?

2 Answers
Jun 30, 2018

x = 3/2

Explanation:

sqrt(125) = 125^(1/2)

125 = 5^3

=> 125^(1/2) = (5^3)^(1/2)

=> 5^x = (5^3 ) ^(1/2)

=> 5^x = 5^(3/2)

Considering the exponents:

x = 3/2

Jun 30, 2018

x=3/2

Explanation:

We can rewrite sqrt125 as 125^(1/2). This now gives us

125^(1/2)=5^x

Let's make our bases the same. 125=5^3, so we can rewrite the equation as

5^(3(1/2))=5^x

Since our bases are the same, the exponents are equal.

5^(3/2)=5^x

=>3/2=x

x=3/2

Hope this helps!