Answer :

Answer:

Step-by-step explanation:

The leading coefficient of x^2 is positive....so this quadratic is bowl shaped parabola in the form    a x^2 + b x + c = 0

  The minimum value occurs at x = - b/(2a) =   - (-4) / (2 * 2) =  1

   when x = 1 the value of the equation is

           2 (1^2) - 4(1) -2 = -4