- 9х2 +8х+1=0
D = b^2-4ac = 8^2 - 4*(-9)*1 = 64-(-36)=64+36=100
VD = V100 = 10
-b+ - VD
Xo =
2a
x1 = (-8+10)/2*(-9)=2/-18 = -1/9
x2 = (-8-10)/2*(-9)=-18/-18=1
OTBET: x=-1/9 i x=1
ax^2+bx+c=0
D=b^2-4ac
x(1,2)=-b(+)(-)
/2a
- 9х2 +8х+1=0
D=64+36=100
x(1)=-8+10/-18=2/-18=-1/9
x(2)=-8-10/-18=1
