Question

решите через дискриминат

Answer 1

х²-6x+8=0

a=1 b=-6 c=8

D=(-6)-4×1×8=36-32=4

x₁=6-√4/2×1=6-2/2=4/2=2

х₂=6+√4/2×1=6+2/2=8/2=4

х={2;4}