Question

х^2-11х+10=0 , х^2-13х+36=0

Answer 1

1) х^2- 11х +10 =0
Д = 121- 4*10=81
х1= 11+9/2= 10
х2 = 11-9/2=1

2) х^2 -13х+36=0
Д= 169 - 4*36= 25
х1= 13+5/2=9
х2= 13-5/2=4