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Math Help - how do i solve?

  1. #1
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    how do i solve?

    r^2 - 13r + 42 = 0?

    the solution of r = ?
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  2. #2
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  3. #3
    Member
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    factor to
    (r-7)(r-6)
    Then your solutions for r would be:
    (r-7)=0--> r=7
    (r-6)=0--> r=6
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