х^2-7х-6=0
D= b^2-4ac
D=(-7)^2+6×4=49+24=73
х=(-b+-√D)/2a
x1=(7+√73)/2
x2=(7-√73)/2
x1×x2=(7+√73)/2 × (7-√73)/2=(49-73)/4=-24/4=-6
х^2-7х-6=0
D= b^2-4ac
D=(-7)^2+6×4=49+24=73
х=(-b+-√D)/2a
x1=(7+√73)/2
x2=(7-√73)/2
x1×x2=(7+√73)/2 × (7-√73)/2=(49-73)/4=-24/4=-6