Simplifying Expression with Exponents

Tomtom · Postby **Tomtom** » Wed Oct 17, 2012 9:01 pm

3^5(3^-2 + 3^-3)
______________
9

Hope this explains as I was unable how to figure out how to make exponents on my laptop.

stapel_eliz · Postby **stapel_eliz** » Fri Oct 19, 2012 1:08 am

$\frac{3^5\left(3^{-2}\, +\, 3^{-3}\right)}{9}$

Where are you stuck? You converted the negative exponents to positives, converted the fractions to common denominators, simplified, and... then what?

. . . . . $\frac{3^5\left(\frac{1}{3^2}\, +\, \frac{1}{3^3}\right)}{3^2}\, =\, \frac{\frac{3^5}{1}\left(\frac{3}{3^3}\, +\, \frac{1}{3^3}\right)}{\frac{3^2}{1}}$

Please be complete. Thank you!

Hope this explains as I was unable how to figure out how to make exponents on my laptop.

To learn how to format math as text, please review this article.

Tomtom · Postby **Tomtom** » Mon Oct 22, 2012 12:27 pm

Sorry my apologies,I neglected to write that I have no idea to solve.

stapel_eliz · Postby **stapel_eliz** » Tue Oct 23, 2012 1:17 am

Sorry my apologies,I neglected to write that I have no idea to solve.

If you mean "simplify", then a good start would probably be with the steps listed earlier. Two steps have already been given to you.

The Purplemath Forums

Simplifying Expression with Exponents

Simplifying Expression with Exponents

Re: Simplifying Expression with Exponents