perlarfm1227 perlarfm1227
  • 14-04-2024
  • Mathematics
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solve by completing the square f^2-6f=-1

Respuesta :

Itz5151
Itz5151 Itz5151
  • 14-04-2024

Step-by-step explanation:

f²-6f = -1

Add 9 both sides

f²-6f + 9 = -1+9 = 8

f²-6f+3² =8

f²-2*3f + 3² = 8

Now by (a²+b²+2ab) = (a+b)²

(f-3)²=8

f-3 = ±√8 Root both sides

f = ±√8+3 (Shift)i.e. -√8+3 or. √8+3

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