Question 462348
the next step is to square root both sides and we obtain 
{{{ x= - sqrt(45)}}} and {{{ x= sqrt(45)}} and this can be further be broken down in  {{{ x= - sqrt(9*5)}}} and {{{ x= sqrt(9*5)}}} and applying what we know about roots we obtain {{{ x= -3*sqrt(5)}}} and {{{ x= 3*sqrt(5)}}}