2. the quadratic equation az^2 + bz + c = 0 would be easy to solve if b = 0. why? the following steps reduce the solution of a general quadratic to this case. you get to carry them out and rediscover the quadratic formula (a) let d be a complex number to be determined. make the change of variables z = w-d in the quadratic equation a: 2 +bs + c = 0 to obtain a quadratic equation for w (b) what choice of denables you to reduce the equation for uw to one you know how to solve?