Question 379022
{{{sqrt(x+7)=x-5}}}
{{{x+7=(x-5)^2}}}
{{{x+7=x^2-10x+25}}}
{{{x^2-11x+18=0}}}
{{{(x-2)(x-9)=0}}}
Two solutions:
{{{x-2=0}}}
{{{highlight(x=2)}}}
.
.
.
{{{x-9=0}}}
{{{highlight(x=9)}}}
.
.
When verifying the solutions, remember that {{{sqrt(a^2)=a}}} and {{{sqrt(a^2)=-a}}}.