Step-by-step explanation:
[tex]\large{ \star \fcolorbox{magenta}{purple}{ \fcolorbox{magenta}{blue}{ \fcolorbox{magenta}{pink}{ \fcolorbox{magenta}{red}{ \sf{ 13}}}}}} \star[/tex]
[tex] {x}^{2} - 26x + 169 = 0 \\ {x}^{2} - 13x -8 13x + 169 = 0 \\ ( {x}^{2} { - 13}^{2} ) = 0 \\ {x}^{2} = 0 + {13}^{2} \\ {x}^{2} = {13 }^{2} \\ x = \sqrt{ {13}^{2} } \\ x = 13[/tex]
