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anonymous

  • 4 years ago

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!

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  1. anonymous
    • 4 years ago
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    \[(a^2b^3)(ab)^-2= \frac{a^2b^3}{(ab)^2}\]

  2. anonymous
    • 4 years ago
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    Note: \[x^{-n}= \frac{1}{x^n}\]

  3. anonymous
    • 4 years ago
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    \[(a^2b^3)(ab)^{-2}= \frac{a^2b^3}{(ab)^2}\] \[= b\]

  4. anonymous
    • 4 years ago
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    why is it b though???

  5. anonymous
    • 4 years ago
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    \[(a^2b^3)(ab)^{-2}= \frac{a^2b^3}{(ab)^2}= \frac{a^2b^3}{a^2b^2}=b\]

  6. anonymous
    • 4 years ago
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    \[Note:(ab)^2=a^2b^2\]

  7. anonymous
    • 4 years ago
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    OH!!!! Okay,thanks!! Your fantabulastic :)

  8. anonymous
    • 4 years ago
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    \[\frac{a^2}{a^2}=1 \ \ \frac{b^3}{b^2}=b \]

  9. anonymous
    • 4 years ago
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    You are Welcome :)

  10. anonymous
    • 4 years ago
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    Wait 1 sec,DONT LEAVE.Will post 1 more question,but a new 1 so I can give you another medal

  11. anonymous
    • 4 years ago
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    Okay :)

  12. anonymous
    • 4 years ago
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    If you want you can post it here itself i will help

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spraguer (Moderator)
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