ljbean1029 ljbean1029
  • 22-06-2020
  • Mathematics
contestada

If 9: x= x-4, then x=
0 36
18
0 24
6

Respuesta :

mhanifa
mhanifa mhanifa
  • 22-06-2020

Answer:

2±√13

Step-by-step explanation:

9/x=x-4

x² -4x - 9=0

x² -4x +4- 13=0

(x -2)²=13

x-2= ±√13

x= 2±√13

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