Cool math Pre-Algebra Help Lessons: Exponents - Negative ...
So, what does it mean when the exponent is negative? It means that we have to do something special... 5^-2 = 1 / 5^2. We make a fraction with the whole thing in .
http://www.coolmath.com/prealgebra/04-exponents/04-exponents-negative-01.htm

Negative Exponents - Purplemath
A negative exponent just means that the base is on the wrong side of the . Note that the "2" above does not move with the variable; the exponent is only on the .
http://www.purplemath.com/modules/exponent2.htm

Solving Negative Exponents - Free Math Help
For example, 24 means 2*2*2*2. But what if your variable is being raised to a negative exponent? If you were given 2-4, how . You can see a negative exponent, so what's the first thing you might want to do? I would try to get the exponent to .
http://www.freemathhelp.com/negative-exponents.html

Topic 1 - Rules of Exponents - Monterey Institute for Technology and ...
Exponents are not always positive. But what does it mean when an exponent is 0 or a negative integer? Let's use what we know about powers of 10 to find out.
http://www.montereyinstitute.org/courses/Algebra1/COURSE_TEXT_RESOURCE/U07_L1_T1_text_container.html

Negative Exponents - Zero Exponents - Time-saving Math Video by ...
A video on how to use negative exponents and zero exponents. . It's important to understand what It means to have negative exponents and zero exponents. . We can use negative exponents for cancelling with positive exponents while .
http://www.brightstorm.com/math/algebra/exponents/zero-and-negative-exponents/