Answer:
Step-by-step explanation:
x^2-18x+58=0
[tex]x^{2}[/tex] - 18x + [tex](-9)^{2}[/tex] +58 = [tex](-9)^{2}[/tex]
[tex](x-9)^{2}[/tex] +58 = 81
[tex](x-9)^{2}[/tex] = 23
x - 9 = [tex]\sqrt{23}[/tex]
x = [tex]\sqrt{23}[/tex] + 9
:) there you go answer A) might be good
