Question 89397
There is an error on the step where you add 9 to the left side


{{{x - 6x + 9 = 3}}}


You need to add 9 to both sides to balance the equation


{{{x - 6x + 9 = 3 + highlight(9)}}}


{{{x - 6x + 9 = 12}}} Add


{{{(x-3)^2= 12}}} Factor the left side


{{{x-3=0+- sqrt(12)}}}  Take the square root of both sides


{{{x=3+- sqrt(12)}}}  Add 3 to both sides


{{{x=3+- 2*sqrt(3)}}} Simplify the square root (note: If you need help with simplifying the square root, check out this <a href=http://www.algebra.com/algebra/homework/Radicals/simplifying-square-roots.solver> solver</a>)