Hallo,
allgemein: Anwendung binomischer Formeln :(a-b)2= a2 -2ab +b2
(100 - 45 * t - 50)2 =(50 - 45 * t )2= 2500 -4500t +2025 t2
(30 - t - 10)2 =(20 - t) 2 =400-40t +t2
(36 - 18 * t - 30)2 =(6 - 18 * t )2 =36-216 t +324 t2
s=√(2500 -4500t +2025 t2+400-40t +t2+36-216 t +324 t2
s=√ (2936 -4756t -2350t2) | (..)2
s2= 2936 -4756t +2350t2