The missing value that makes the quadratic equation y^2 +22y+ ? = 0 a perfect square is? What’s the quadratic equation in the form of perfect square.

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by