Respuesta :

mhanifa

Answer:

2.4

Step-by-step explanation:

  • √(x² +49) = x + 5
  • (√(x² +49) )²= (x + 5)²       ⇒  square of both sides
  • x² + 49 = x² + 10x + 25     ⇒  simplifying, x² get cancelled
  • 10x = 49 -25
  • 10x = 24
  • x= 24/10
  • x= 2.4

Answer is  2.4

Answer:

12/5

Step-by-step explanation: