Помогите пж: 1) x^2 + 3x + 2 = 0 2) x^2 - 4x - 5 = 0

Question

Помогите пж:

1) x^2 + 3x + 2 = 0

2) x^2 - 4x - 5 = 0

Answer 1

Х²-4х-5=0
D=16+20=36
х1=4+6/2=5
х2=4-6/2=-1

х²+3х+2=0
D=9-8=1
х1=-3+1/2=-1
х2=-3-1/2=-2