Please, if you can, help me with my previous pre-calc questions. I am extremely lost and feeling hopeless and depressed in my future because of my grade in this god awful class.. Please if you can! <3

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

Is it true or false i’m trying to pass this test so i can leave school

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