Question 1198223



standard form of a quadratic equation:

{{{y = a(x - h)^2 + k}}}

you have

{{{y = 2x^2 - 4x + 1}}}.......complete square

{{{y = (2x^2 - 4x) + 1}}}

{{{y = 2(x^2 - 2x+b^2) -2b^2+ 1}}}........{{{b=-2/2=-1}}}

{{{y = 2(x^2 - 2x+1^2) -2*1^2+ 1}}}

{{{y = 2(x - 1)^2 -2+ 1}}}

{{{y = 2(x - 1)^2 -1}}}