Question

Solve the equation by completing the spuare -2x^2+x=0

Answer 1

a^2 +bx +c

complete the square is (b/2)^2 so in this case (1/2)^2 or 1/4 add that to both sides see if that is what you are looking for.

Answer 2

you don't need completing the square here but you can
x(-2x+1)=0
so x=0 x=1/2