Respuesta :
x^2=100 (set problem up)
[tex] \sqrt{x^2}[/tex]= \sqrt{100} (solve for x)
x=10
[tex] 10^{2} [/tex]-10=90 (plug in x and solve)
[tex] \sqrt{x^2}[/tex]= \sqrt{100} (solve for x)
x=10
[tex] 10^{2} [/tex]-10=90 (plug in x and solve)