Complete the square x² -2x
we do not have an equals sign so lets say it is equal to yy=x^2-2xtake 1/2 of b and square it-2/2=-1, (-1)^2=1add -1 and 1y=x^2-2x+1-1copmlete squarey=(x-1)^2-1the copmleted squaer form is(x-1)^2-1
