Question 1092254
(x-2)^2=13
find the square root of both sides
x - 2 = +/-{{{sqrt(13)}}}
add 2 to both sides
x = 2 + {{{sqrt(13)}}} approx 5.61
and
x = 2 - {{{sqrt(13)}}} approx -1.61
:
:
Check in original problem
(5.61-2)^2 = 13.03 because of rounding off
and
(-1.62-2)^2 = 13.03