Sunday, March 11, 2012

exponents

this week we did exponents so today im going to teach you how to do a little bit of exponents.  some key notes are 1) b^x * b^y= b^x+y 2)b^x / b^y= b^x-y 3) #^0= 1 4) (ab)^x= a^x * b^y 5) (a/b)^x= a^x/ b^y
these are just some common notes that will be used in the examples below.


EX:
1) (-4)^-2
-1/4 *-1/4
= 1/16
2) -4^-2
=-1/16
3)(5*2)^-3
5^-3 * 2^-3
=1/125 * 1/8= 1/1000

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