Respuesta :

Answer:

x=7

Step-by-step explanation:

Answer:

[tex]x=7[/tex]

Step-by-step explanation:

If you put it in...

[tex]7^2-(14*7)+49=0[/tex]

[tex]7^2=49[/tex]

[tex]-(14*7) = -98[/tex]

[tex]49-98+49=0[/tex]