Need help with math problem if do get 5 star

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?