Quadratics and Cubics, SMB-040 By completing the square, solve for `x` given `x^2-12x=-4.` (3 marks) Show Answers Only `6+-4sqrt(2)` Show Worked Solution `x^2-12x` `=-4` `x^2-12x+36` `=-4+36` `(x-6)^2` `=32` `x-6` `= +-sqrt(32)` `x` `=6+-4sqrt(2)`