SOLUTION: Suppose r and s are the roots of the quadratic equation 3x^2 + 2x - 8 = 0. Find the following values. a. the average of r and s

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: Suppose r and s are the roots of the quadratic equation 3x^2 + 2x - 8 = 0. Find the following values. a. the average of r and s      Log On

    the average of r and s = .


To find  r+s,  apply  the Vieta's theorem:


    r + s =  = .


Therefore,  the average of r and s =  =  = .     ANSWER