|
|
|
|
||
|
|
|
|
|
Simplifying
Expressions with Exponents:
Before I can cancel anything off, I need to simplify that top parentheses, because it has a negative exponent on it. I can't cancel off, say, the a's, because that a4 isn't really on top. I can either move the whole parentheses down, square, and then simplify, or I can take the negative-square through first. I'll show both ways:
There are other ways to go about simplifying the above. As long as each step is correct and you get the right answer, your method will be right. Copyright © Elizabeth Stapel 2006-2008 All Rights Reserved
This is a special case. The negative exponent says that whatever is on top should go underneath, and whatever is underneath should go on top. So I'll just flip the fraction, and simplify from there:
Note: This only works if the negative exponent is on the whole fraction.
There are so many ways I can do this. I'll show four:
You should expect to see at least one problem this complicated on your test. The major point to get here is that you should work these problems out slowly. Don't try to do too much at once. If you work bit by bit, you should be able reliably to get the right answer. Just take your time. << Previous Top | 1 | 2 | 3 | Return to Index
|
|
|
|
Copyright © 2006-2008 Elizabeth Stapel | About | Terms of Use |
|
|
|
|
|
|