What is the constant term that completes the perfect square trinomial. y^2 + y

Y^2 + y

y^2 + y + 0.25 <=== the constant term is 0.25
(y + 0.5)(y + 0.5) =
(y + 0.5)^2

to find the constant, u take half of ur y coefficient (not the y^2 coefficient)y^2 + 1yur y coefficient is 1half of it is 0.5u then square it(0.5^2) = 0.25 this is ur constant