Evaluate -4 + (m + 2) over n when m = 2/3 and n = 1/3

a: -4

b: 4/9

c: 4

d: 12

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

What is the value of x in the following equation? -3x-2=2x+8