Question 1085954
We must complete the square as step one.



(1300/2)^2 = 422,500. Add to both sides.



x^2 + 1300x + 422,500 = -1300 + 422,500



x^2 + 1300x + 422,500 = 421,200



(x + 650)(x + 650) = 421,200



(x + 650)^2 - 421,200 = 0



c = -421,2000



b = 650



So, c/b = -421,200/650



c/b = -648