Term vereinfachen mit Ausklammern: (s+1)(s2-s+1)-(s-1)(s2+s-1)+2(1-s)

Question

(s+1)(s²-s+1)-(s-1)(s²+s-1)+2(1-s)

Answer 1

(s + 1)(s² - s + 1) - (s - 1)(s² + s - 1) + 2(1 - s)

= (s³ - s² + s + s² - s + 1) - (s³ + s² - s - s² - s + 1) + (2 - 2s)

= (s³ + 1) - (s³ - 2s + 1) + (2 - 2s)

= s³ + 1 - s³ + 2s - 1 + 2 - 2s

= 2