Question 1028894
start with:


2 * (x-2)^2 = 22


divide both sides of the equation by 2 to get (x-2)^2 = 11


take the square root of both sides of the equation to get x-2 = plus or minus sqrt(11).


add 2 to both sides of the equation to get x = 2 plus or minus sqrt(11)


you have two possible values for x.


x = 2 + sqrt(11)


x = 2 - sqrt(11)


replace x in the original equation with these values and you'll see that the equation is true.