Answer: [tex]x=9,\:x=-9[/tex]
Steps:
[tex]x^2-55=26[/tex]
[tex]\mathrm{Add\:}55\mathrm{\:to\:both\:sides}[/tex]
[tex]x^2-55+55=26+55[/tex]
[tex]\mathrm{Simplify}[/tex]
[tex]x^2=81[/tex]
[tex]\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}[/tex]
[tex]x=\sqrt{81},\:x=-\sqrt{81}[/tex]
[tex]\sqrt{81}[/tex]= 9
[tex]-\sqrt{81}=-9[/tex]
So That Equals:
[tex]x=9,\:x=-9[/tex]
#[tex]Hardnessed To Perfection[/tex]
