Respuesta :
SOLUTION:
=) x² - 15² = 121
=) x² - 225 = 121
=) x² = 121 + 225
=) x = root 346
=) x = 18.6
Answer:
[tex]x = 26[/tex] , [tex]x = 4[/tex]
solving steps:
[tex](x - 15)^2 = 121[/tex]
[tex]\sqrt{(x - 15)^2} = \pm \sqrt{121}[/tex]
[tex]x- 15= \pm 11[/tex]
[tex]x = 11 + 15[/tex] , [tex]x = -11 +15[/tex]
[tex]x = 26[/tex] , [tex]x = 4[/tex]