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(a^2 - 4a)/(a^2-a-6) minus (a-6)/a^2-a-6)

  • Algebra -

    combine terms to get

    (a^2 - 4a - a + 6)/(a^2-a-6)
    = (a^2-5a+6)/(a^2-a-6)
    = (a-3)(a-2)/((a-3)(a+2))
    = (a-2)/(a+2)
    if a≠3

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