Algebra

divide and simplify the radical

(3+ sqrt18)/4 sqrt12

I'm not sure how to conjugate the denominator?

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asked by Emma
  1. repartir 152 entre A,B,C de modo que la parte de B sea 8 menos que el duplo de la de A y 32 mas que la de C

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    posted by Aurora
  2. (3+√18) / 4√12
    = (3+3√2) / 8√3
    = 3√3 (1+√2) / 24
    = (1+√2)√3 / 8
    = (√3+√6)/8

    or several other ways to express it

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    posted by Steve
  3. B = 2A-8
    B = C+32
    A+B+C = 152

    C = B-32 = 2A-8-32

    A + 2A-8 + 2A-40 = 152
    5A - 48 = 152
    5A = 200
    A=40
    B=72
    C=40

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    posted by Steve

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