Solve. 6a = 57 question 20 options: a.5/42 b.30/7 c.5/13 d.11/7

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

With finding limits of multi variable !

What’s the answer ? use the picture to see the problem