write each quadratic equation in standard form then identify the value of a b and c

(2x -1)^2  = ( x + 1)^2

4x^2 - 2x - 2x + 1  = x^2 + 2x + 1

4x^2  - 4x + 1  =  x^2 + 2x + 1

3x^2 - 6x  = 0

a =3 , b = -6,  c = 0