1)y=x^2 + 6x + 5
x^2+6x+5=0
D=36-20=16=4^2
x1= -6+4/2=-1
x2= -6-4/2=-5
2) y=x^2-6x+5
x1= 6+4/2 =5
x2= 6-4/2 =1
1)y=x^2 + 6x + 5
x^2+6x+5=0
D=36-20=16=4^2
x1= -6+4/2=-1
x2= -6-4/2=-5
2) y=x^2-6x+5
D=36-20=16=4^2
x1= 6+4/2 =5
x2= 6-4/2 =1