21-27. Find the missing to make the equation by completing the square correct. x² + 6x=-5 21. x2 + 6x + (21) -5+ (22) 22. 23. 6 = (233) = (24) 2 24. 25. (x + 3) =(25) x +3= +2 26. 27. _ x + 3=2 x +3=-2 x=2-3 x=-2-3 x=(27) = x = (26)​