Question 979186
{{{x^2-98=0}}}

{{{x^2=98}}}

{{{x=sqrt(98)}}}

{{{x=sqrt(49*2)}}}

{{{x=sqrt(49)*sqrt(2)}}}

{{{x=7*sqrt(2)}}}
 

solutions:

{{{x=7*sqrt(2)}}} or {{{x=-7*sqrt(2)}}}