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Math

posted by on .

Please help! They are asking for 2 solution sets and I don't know where to start. Thanks in advance!

Solve and write interval notation for the solution set.


3 – 8x < –5 or 3 – 8x > 19

  • Math - ,

    Solve each part independently:

    3 - 8x < -5
    -8x < -8
    x > 1

    3 - 8x > 19
    -8x > 16
    x < -2

    Therefore, the solution is [-infinity, -2] and [1, infinity]

  • Math - ,

    Would this
    [-infinity, -2] and [1, infinity]

    be the same and equal

    (-infinity sign,-2, U(1,infinity sign)

  • Math - ,

    Yes. I should have used parentheses.

  • Math - ,

    It's ok, I see how this is the answer now! Thanks again for your help!

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