1) enter 6/12 in simplest form. 2) enter 18/21 in simplest form.

How do i do this activity, is appreciated

Select the quadratic that has root x = 8 and x = -5

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