GRE Math : How to find an exponent from a rational number

Study concepts, example questions & explanations for GRE Math

varsity tutors app store varsity tutors android store varsity tutors amazon store varsity tutors ibooks store

Example Questions

2 Next →

Example Question #31 : Exponents

Solve for .

Possible Answers:

Correct answer:

Explanation:

 

We still don't have the same base however:  

Then,

.

With same base we can set up an equation of 

Divide both sides by  and we get 

2 Next →
Learning Tools by Varsity Tutors