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asianila

  • 2 years ago

Simplify this expression (-5a^3b^-2)^3

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  1. asianila
    • 2 years ago
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    |dw:1359695519643:dw|

  2. asianila
    • 2 years ago
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    and |dw:1359695734463:dw|

  3. ShikhaDessai
    • 2 years ago
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    take each variable or constant step by step... (-5)^3 * (a^3)^3 * (b^-2)^3 if there are 2 exponents they get multiplied... and for (-5)^3 multiply -5 thrice by itself.. so it becomes -125a^9 b^-6

  4. ShikhaDessai
    • 2 years ago
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    |dw:1359695803471:dw|

  5. asianila
    • 2 years ago
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    what about the other one

  6. ShikhaDessai
    • 2 years ago
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    in your second question, use the method i told u...

  7. asianila
    • 2 years ago
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    so it would be 1/64

  8. asianila
    • 2 years ago
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    |dw:1359695951511:dw|

  9. ShikhaDessai
    • 2 years ago
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    yes....or you can even write 64^-1 since the sign changes when u make it a reciprocal(when numerator becomes denomerator or denominaator becomes numerator..)

  10. ShikhaDessai
    • 2 years ago
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    hope u understood:)

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