Question 103618
1.  {{{x^2-4x+2 = 0 }}}

*[invoke quadratic "x", 1, -4, 2]

2.  {{{5x^2 - 2 = 2x }}} => {{{5x^2 -2x -2 = 0}}}

*[invoke quadratic "x", 5, -2, -2]

3.    {{{3x^2 - 6x = 2}}} = > {{{3x^2 - 6x - 2 = 0}}} 

*[invoke quadratic "x", 3, -6, -2]