1)8^2-12x+36=0
D= 144-4*1*36=0
x=12/2=6
x=6
3)3х^2+32х+80=0
6х+32х=-80
38х=-80
х= 80/38= - 40/19
х= 2 2/19
1)8^2-12x+36=0
D= 144-4*1*36=0
x=12/2=6
x=6
3)3х^2+32х+80=0
6х+32х=-80
38х=-80
х= 80/38= - 40/19
х= 2 2/19