6x(x-2) - 4(x²+2) / 24x = x+5 / 3x
2x² - 12x - 8 /24x = x+5 / 3x
3x( 2x²-12x-8 ) = 24x( x+5)
6x³- 60x²- 144x = 0 , x ausklammern → x ( 6x²- 60x - 144) , Nullstelle 0
6x² - 60 x - 144 , durch 6 teilen , x² - 10x - 24, P-Q-Formel !!
x1,2 = 5 ± √25 +24 = 5± √ 49
x1 =12 , x2 = - 2