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huneya Group Title

What is the solution set of |2x + 4| < 10? x > 3 and x < –7 x > –7 and x < 3 x < 3 and x > –3 x < –7 and x > 7

  • 2 years ago
  • 2 years ago

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  1. dpaInc Group Title
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    you will need to solve two inequalities: \(\large 2x+4<10 \) and \(\large 2x+4=-10 \)

    • 2 years ago
  2. nbouscal Group Title
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    The way I always do these problems is separate it into two cases: when 2x+4 is positive, and when 2x+4 is negative. Then just solve each, and there you go.

    • 2 years ago
  3. dpaInc Group Title
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    that second one should be: \(\large 2x+4>-10 \)

    • 2 years ago
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