Hallo Gast!
p * 20p - 100 - ((20p)^2) / 40 = 0
20p² -100 - 400p² / 40 = 0
20p² -100 - 10p² = 0
10p² - 100 = 0
10p² = 100
p² = 10
p = √10
p1 = 3,162...
p2 = - 3,162..
asinus :- )
!
(Soll der Exponent von 20p 2/40 (0,05) heißen, muss (2/40) in Klammern stehen.)
