a2-40a+220=0 Share with your friends Share 2 Rishabh Mittal answered this a2-40a+220=0a=40±-402-412202=40±1600-8802=40±7202=40±1252=20±65 ANS... 4 View Full Answer Bharat Chandra answered this Practice yourself dude... Its very easy... 2 Sweet Simmi answered this There's no factors for that to split the middle term :( 0 Sayantani Ghosh answered this Apply Sridharacharya's Formula. 0 Sagar Patel answered this Here, D = b^2 - 4ac = (-40)^2 - 4 (220)(1) = 1600 - 880 = 720 Roots = (-b + root D)/2a and (- b - root D)/2a first root = (40 + root (720))/2 = (40 + 12 root 5)/2 = 20 + 6 root 5 and other root is 20 - 6 root 5 2
