Löse die folgenden kubischen Gleichungen ax3 + bx2 + cx = 0

7.5x3 + 15x2 - 112.5x = 0
 x1 = 0 ,   x2 = -5 ,   x3 = 3		8.5x3 + 51x2 - 229.5x = 0
 x1 = 0 ,   x2 = -9 ,   x3 = 3
6.5x3 + 71.5x2 + 65x = 0
 x1 = 0 ,   x2 = -10 ,   x3 = -1		9x3 - 27x2 + 18x = 0
 x1 = 0 ,   x2 = 1 ,   x3 = 2
-6x3 + 150x = 0
 x1 = 0 ,   x2 = -5 ,   x3 = 5		3.5x3 - 28x2 + 42x = 0
 x1 = 0 ,   x2 = 2 ,   x3 = 6
6.5x3 + 19.5x2 = 0
 x1 = 0 ,   x2 = -3 ,   x3 = 0		6.5x3 - 97.5x2 + 364x = 0
 x1 = 0 ,   x2 = 7 ,   x3 = 8
5.5x3 - 5.5x = 0
 x1 = 0 ,   x2 = -1 ,   x3 = 1		-5x3 + 40x2 - 60x = 0
 x1 = 0 ,   x2 = 2 ,   x3 = 6
-4x3 - 8x2 + 320x = 0
 x1 = 0 ,   x2 = -10 ,   x3 = 8		-8.5x3 - 110.5x2 - 306x = 0
 x1 = 0 ,   x2 = -9 ,   x3 = -4
8.5x3 - 42.5x2 = 0
 x1 = 0 ,   x2 = 0 ,   x3 = 5		9.5x3 - 950x = 0
 x1 = 0 ,   x2 = -10 ,   x3 = 10
-8.5x3 - 8.5x2 = 0
 x1 = 0 ,   x2 = -1 ,   x3 = 0		6.5x3 + 130x2 + 650x = 0
 x1 = 0 ,   x2 = -10 ,   x3 = -10
2x3 + 4x2 + 2x = 0
 x1 = 0 ,   x2 = -1 ,   x3 = -1		x3 - x2 - 30x = 0
 x1 = 0 ,   x2 = -5 ,   x3 = 6
3x3 - 48x2 + 192x = 0
 x1 = 0 ,   x2 = 8 ,   x3 = 8		3x3 - 33x2 + 90x = 0
 x1 = 0 ,   x2 = 5 ,   x3 = 6