X^2-3x+2=0 через дискриминант

Question

X^2-3x+2=0 через дискриминант

Answer 1

D= (-3)^2 - 4*a*c=9-4*1*2=1

x1= (3+1)/2=2;

х2=(3-1)/2=1.

Answer 2

Д=(-3)^2-4×1×2=9-8=1

x1=(-(-3)+√1)/2×1=(3+1)/2=4/2=2

x2=(-(-3)-√1)/2×1=(3-1)/2=2/2=1