Question

1. 2. Памагіте пожалоста

Answer 1

1)х²-4х-5/6
х²-4х-5=0
D=16-(4×1×(-5))=16+20=36=6²
х1=4+6/2=10/2=5
х2=4-6/2=-2/2=-1
2)х²-6-х/7
х²-6-х=0
x²-x-6=0
D=1-(4×1×(-6))=1+24=25=5²
x1=1+5/2=6/2=3
x2=1-5/2=-4/2=-2