logo for solving-math-problems.com
leftimage for solving-math-problems.com

Algebra problem

by Tyler
(Rowley, MA, USA)











































Can you help me with this one?

Simplify the expression which contains variables in the exponents.

3^x-1/3^1-x

Comments for Algebra problem

Click here to add your own comments

Sep 21, 2010
Simplify Algebraic Expression
by: Staff

The question:

by Tyler
(Rowley, MA, USA)

Can you help me with this one?

3^x-1/3^1-x

The answer:

Since you didn’t use any brackets to group different parts of your expression, I am going to assume your expression is exactly as you have written it:

3^x-1/3^1-x = 3^x – 1/3 -x

The answer is: 3^x – 1/3 –x


Or, you could put all three terms over a common denominator:


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


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


(3 * 3^x – 1 – 3 * x)/3 = [3^(x+1) – 1 – 3x]/3


In this case, the final answer would be: [3^(x+1) – 1 – 3x]/3


Thanks for writing.


Staff
www.solving-math-problems.com



Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Math Questions & Comments - 01.



Copyright © 2008-2015. All rights reserved. Solving-Math-Problems.com