Question 74839
Solve:
{{{(x-1)^2 = 7}}} Take the square root of both sides.
{{{x-1 = sqrt(7)}}} or {{{x-1 = -sqrt(7)}}} In both cases, add 1 to both sides.
{{{x = 1+sqrt(7)}}} or {{{x =1-sqrt(7)}}} These are the roots.
This uses the square root method becuase it is most direct.