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anonymous

  • 5 years ago

how to simplify 2 sq r 54 - sq r 6

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  1. anonymous
    • 5 years ago
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    Do you know to do a factor tree on the number 54?

  2. anonymous
    • 5 years ago
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    yes. it would be 3 radical 6 right?

  3. anonymous
    • 5 years ago
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    Correct so the sqrt of 54 breaks down to 3 sqrt 6 and you have a 2 out front so you need to multiply that 2 by the 3 that you just brought out front to get 6 sqrt 6 - sqrt 6. Think of this as 6x - x which would be 5x .. but in this case 5 sqrt 6

  4. anonymous
    • 5 years ago
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    so now its 6 sqrt 6 - sqrt 6?

  5. anonymous
    • 5 years ago
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    yes.. and 6 sqrt 6 minus 1 sqrt 6 is 5 sqrt 6. Same things as 6x minus 1x is 5x

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