Jawapan

2016-06-05T21:24:16+08:00
      x(3x-1) = 4(2+x)
         3x²-x = 8+4x
 3x²-x-4x-8 = 0
    3x²-5x-8 = 0
(3x-8)(x+1) = 0

x=8/3 , x=-1

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