Solve this: 1. 4 x 2 - 8 k 2 + p + 9 2. 4 x 2 - 8 k 2 + 9 In both equation, what is taken as 'b' in quadratic formula? Share with your friends Share 0 Brijendra Pal answered this Hi, Since coefficient of x is missing in both the equation so b = 0 in both 2 View Full Answer