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dessie91

  • 4 years ago

5^4√7 - 8^3√7 - 2^4√7 - ^3√7 Would the answer be 3^4√7 - 9^3√7? Or do I combine them all because the square roots are all the same?

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  1. fncj
    • 4 years ago
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    you got the right answer and you can't go further since roots are not the same

  2. Walleye
    • 4 years ago
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    A good way to think about this is set sq(7) = x so you have 3^4x -9^3x

  3. Walleye
    • 4 years ago
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    it makes it easier to see you can add them

  4. Walleye
    • 4 years ago
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    cant******

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