Respuesta :

mhanifa

Answer:

0.86, 8.14

Step-by-step explanation:

  • x+ 7/x =9,                         where x≠0
  • x^2+7= 9x                        multiply each term by x to get rid of fraction
  • x^2 - 9x + 7= 0                 solving as normal quadratic equation
  • x= (9 ±  √ (9^2 - 4*7)) / 2
  • x= (9 ± √53) /2
  • x≈ 0.86
  • x≈ 8.14

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