Jawabanmu

2014-02-10T00:08:04+07:00
D= b²-4ac > 0
  = (2m)² - 4(m+3)(m+1) >0
  = 4m² - 4 (m²+m+3m+3) >0
  = 4m² - 4 (m²+4m+3) >0
  = 4m² - 4m² - 16m - 12 >0
  = -16m - 12 >0
  = -16m > 12
  = m > 12 ÷ (-16)
  = m > - 3/4

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