Question

Rozwiąż równanie : ½x²+1¼x+½=0

Answer 1

Delta = b^2 - 4*a*c
delta =(5/4)^2- 4*[(1/2)*(1/2)]
delta = 25/16 - 1= 9/16
pierwiastek z delty = 3/4
x1= - b- pierwiastek z delty/2*a
x1= - 5/4-3/4 /1 = - 8/4=-2
x2=-b+ pierw z delty / 2a
x2= - 5/4 + 3/4 / 1= - 2/4 = - 1/2