Algebra 1 Variables With Exponents
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What a Square
Variables With Exponents

 

 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

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