ich nehme mal an, die Formeln sollen Term = 0 lauten.
- 1/2 x2 + 5/2 x +1/2 = 0 | * (-2)
x2 - 5x - 1 = 0
x2 + px + q = 0
pq-Formel: p = - 5 ; q = - 1
x1,2 = - p/2 ± \(\sqrt{(p/2)^2 - q}\)
...
x1 = 5/2 + √29 / 2 ; x2 = 5/2 - √29 / 2
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- 1/2 x2 + 13/2 = 0
- 1/2 x2 = - 13/2 | * (-2)
x2 = 13
x1,2 = ±√13
Gruß Wolfgang