Complete the square to solve the equation below. x2 - 10x - 2 = 17
O A. x = 5 + /55; x = 5 - /55
O B. x = 6 + /30; x = 6 - /30
O C. x = 5 + /29; x = 5 -/ 29
O D. x = 5 + /44; x = 5 - /44

Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).