anonymous
  • anonymous
Help me,por favor? The problem is (a^2b^3)(ab)^-2 and the answer is b,but how do I get there? step by step answer,plz and thank you!
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
\[(a^2b^3)(ab)^-2= \frac{a^2b^3}{(ab)^2}\]
anonymous
  • anonymous
Note: \[x^{-n}= \frac{1}{x^n}\]
anonymous
  • anonymous
\[(a^2b^3)(ab)^{-2}= \frac{a^2b^3}{(ab)^2}\] \[= b\]

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anonymous
  • anonymous
why is it b though???
anonymous
  • anonymous
\[(a^2b^3)(ab)^{-2}= \frac{a^2b^3}{(ab)^2}= \frac{a^2b^3}{a^2b^2}=b\]
anonymous
  • anonymous
\[Note:(ab)^2=a^2b^2\]
anonymous
  • anonymous
OH!!!! Okay,thanks!! Your fantabulastic :)
anonymous
  • anonymous
\[\frac{a^2}{a^2}=1 \ \ \frac{b^3}{b^2}=b \]
anonymous
  • anonymous
You are Welcome :)
anonymous
  • anonymous
Wait 1 sec,DONT LEAVE.Will post 1 more question,but a new 1 so I can give you another medal
anonymous
  • anonymous
Okay :)
anonymous
  • anonymous
If you want you can post it here itself i will help

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