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lisa123

  • one year ago

simplify ^7sqrt(128x^7)

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  1. saifoo.khan
    • one year ago
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    \[\Large \sqrt[7] {128x^7}\]?

  2. lisa123
    • one year ago
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    yes

  3. saifoo.khan
    • one year ago
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    |dw:1441232531746:dw|

  4. saifoo.khan
    • one year ago
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    Next, break 128 into its prime factors.

  5. lisa123
    • one year ago
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    2 and 64

  6. saifoo.khan
    • one year ago
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    \[\sqrt[7]{64 \times 2} *\sqrt[7]{x^7}\]\[\sqrt[7]{32\times 2 \times 2} *\sqrt[7]{x^7}\] Keep breaking it until you're left with just the factors.

  7. lisa123
    • one year ago
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    okay im left with eight 2's inside the radical

  8. saifoo.khan
    • one year ago
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    There should be 7.

  9. saifoo.khan
    • one year ago
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    |dw:1441232920424:dw|

  10. lisa123
    • one year ago
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    okay yeah sorry I counted wrong

  11. saifoo.khan
    • one year ago
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    |dw:1441233072677:dw|

  12. lisa123
    • one year ago
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    thank you that makes a lot of sense now!

  13. saifoo.khan
    • one year ago
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    Cool! :D

  14. saifoo.khan
    • one year ago
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    What grade math is this? Online college?

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