Equação completas e Incompletas
Autor: Hi | Publicado: 2011-11-03T18:23:00-07:00

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Equação completas e Incompletas
&nbsp;&nbsp;&nbsp; Uma equação do 2º grau é completa quando b e c são diferentes de zero. Exemplos:
x² - 9x + 20 = 0&nbsp;&nbsp; e -x² + 10x - 16 = 0 são equações completas.&nbsp;&nbsp;&nbsp; Uma equação do 2º grau é incompleta quando b ou c é igual a zero, ou ainda quando ambos são iguais a zero. Exemplos:
  
      x² - 36 = 0
(b = 0) 
      x² - 10x = 0
(c = 0) 
      4x² = 0
(b = c = 0) 
  

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