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Help1234321

HELP!!!!!!!!!!!!!!! Simplify 4^21 ---- 4^7 1. 4^28 2. 4^21 3. 4^7 4. 4^3

  • one year ago
  • one year ago

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  1. Help1234321
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    @gaby6

    • one year ago
  2. Help1234321
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    @sue101

    • one year ago
  3. Help1234321
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    @sunlab2015 @surdawi @MicroBot @MATHGEOMETRY8 @Hollywood_chrissy

    • one year ago
  4. SheldonEinstein
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    Always remember that : \(\frac{a^b}{a^c} = a^{b-c} \)

    • one year ago
  5. SheldonEinstein
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    Hence, \[\large{\frac{4^{21}}{4^7} = 4^{21-7} = 4^{14}}\]

    • one year ago
  6. Help1234321
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    Which operation would you use on the exponents to simplify the expression 57 × 511? Addition Subtraction Multiplication Division

    • one year ago
  7. Help1234321
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    Which operation would you use on the exponents to simplify the expression 5^7 × 5^11? Addition Subtraction Multiplication Division

    • one year ago
  8. Miyuru
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    Addition.........

    • one year ago
  9. Help1234321
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    Simplify 15^4 ---- 15^5

    • one year ago
  10. Help1234321
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    @Miyuru

    • one year ago
  11. Help1234321
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    @SheldonEinstein

    • one year ago
  12. Miyuru
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    Do subtraction.. :)

    • one year ago
  13. Help1234321
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    Simplify 15^4 ---- 15^5

    • one year ago
  14. Help1234321
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    wouldnt it be 15^-9??? not a answer

    • one year ago
  15. Help1234321
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    its 15^-4 and 15^5

    • one year ago
  16. Miyuru
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    Do subtraction like this....\[\frac{15^4}{15^5}=15^{4-5}=15^{-1}\]

    • one year ago
  17. Miyuru
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    This answer is for the one you typed before..

    • one year ago
  18. gaby6
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    Addition

    • one year ago
  19. radar
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    \[15^{(4-5)}\]

    • one year ago
  20. Miyuru
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    \[\frac{15^{-4}}{15^5}=15^{-4-5}=15^{-9}\]

    • one year ago
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