Answer:
Step-by-step explanation:
x^2 - 12x + 35 = 0 to complete the square the leading coefficient must by '1'....which it already is
x^2 -12x + 35 =0 now take 1/2 of the x coefficient (-12) square it then add it and subtract it from the equation:
x^2 - 12x + 36 - 36 + 35 = 0 reduce/simplify it
(x -6)^2 -1 = 0 solve it
(x-6)^2 = 1 sqrt both sides
x-6 = ± 1
x = +1 +6 or -1 +6
x = 7 and 5
