Simplify 3(4x + 6) - 9x.

12 x + 18 - 9 x
3 x + 18
-15 x + 18
3 x + 6

Which expression is equivalent to 2x^2+2x-4/2x^2-4x+2

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 compound inequality could be represented by the graph?