|
So we can deal with X - 4, and 3X, and stuff like that, right? |
||
| What about ... | ||
|
X times X |
||
| Back when you were learning about multiplying numbers together, | ||
| maybe you learned about exponents. | ||
| Exponents are little numbers that say | ||
| "Multiply this thing to my left times ITSELF this many times." | ||
| So: | ||
|
|
||
| These little exponent numbers are just a way | ||
| to write stuff in less space. | ||
|
MATH TYPES JUST LOVE TO SAVE SPACE! |
||
| SO how do we save space writing ... | ||
|
X times X |
||
| We write it like this ... | ||
|
X2 |
||
|
copyright 2005 Bruce Kirkpatrick |
