Hallo,
1) f(x) = x^2 +6x + 4
2) A (-6/y) B(x/-1)
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f(x) = (-6)^2 +6 *(-6) + 4 = 36 -36 +4= 4 ----->A (-6/4)
f(x) = x^2 +6x + 4 für y= 1
x^2 +6x +4= -1 | +1
x^2 +6x +5 =0 .z.B pq-Formel
x1.2= -3± √(9-5)
x1.2= -3± 2
x1= -1
x2= -5
->B1(-1/-1)
B2(-5/-1)