Question 83532
{{{2x^2-1=6x}}} Start with the given equation


{{{2x^2-1-6x=0}}} Subtract 6x from both sides


{{{2x^2-6x-1=0}}} Rearrange in {{{ax^2+bx+c}}} form


Now use the quadratic formula to solve for x


*[invoke quadratic "x", 2, -6, -1 ]