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Lê Quốc Trần Anh Coordinator

23/04/2018 at 11:01
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Find number of integers $x$ that satisfy $8 < |3x+4| < 32$.




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  • ...
    07NK-6789 Coordinator 25/04/2018 at 09:31

    We see that, if x satisfies the equation above => 

    \(-8< 3x+4< -32\) and \(8< 3x+4< 32\)

    So we have \(28\cdot2=56\) possible values of x.

    Solve each equations we will have the exact values of x.

    Lê Quốc Trần Anh selected this answer.
  • ...
    FA NAKROTH 25/04/2018 at 14:39

    We see that, if x satisfies the equation above => 

    −8<3x+4<−32

     and 8<3x+4<32

    So we have 28⋅2=56

     possible values of x.

    Solve each equations we will have the exact values of x.


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