You are here:

Algebra/algeabra

Advertisement

Expert: - 7/24/2009


Question
write each expression using positive exponents. 4^3, 6^2, 7x^-3,   (7x)^-3

Answer
Hi Glenn,

The exponents are positive on the first two, so I'll help with the last two expressions.

Property of exponents:  x^(-a) = 1/(x^a)

7*x^(-3) = 7*1/(x^3) = 7/(x^3)

(7x)^-3 = 1/((7x)^3)

Let me know if you have any questions.

Bobby

Algebra

All Answers

Answers by Expert:

Ask Experts

Volunteer

Bobby Soltani

Expertise

I can help with all types of questions in algebra, geometry, trigonometry, and calculus. I can answer general physics questions. I can also help simplify and solve word problems.

Experience

I have been a math and physics tutor in college for 3 years.

Education/Credentials
Bachelor's and Master's degrees in Electrical Engineering.

©2012 About.com, a part of The New York Times Company. All rights reserved.