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How would I rationalize this

I think it would be -

Multiply both sides by 11-root5
then use the foil method on the denominator to give you 55-5root5/121+5root11-5root11-5
the 2 roots would cancel out giving you 55-5root5/12-5

so would the answer be 55-5root5/7

thanks in advance

  • math -

    you have a typo and then transcribed that error

    should have been
    (55 - 5√5)/(121-5)
    =(55 - 5√5)/116

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