college math 209

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write in simplified radical form by rationalizing the denominator 2ã5 + 3/ã5 - 1

  • college math 209 -

    is this the equation ?,

    2(sqrt5) + 3/(sqrt5) - 1

    2(sqrt5) + 3(sqrt5)/5 - 1

    to get rid of the radical in 3/(sqrt5).
    multiply 3/(sqrt5)*sqrt5/sqrt5 = 3(sqrt5)/5

  • college math 209 -

    -6/8 - 6/8 =

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