2 X 1 X 3 X 53 X 3 2(X 3) X 32X 9 X 3 2X...
20/
2
x 1 x 3
x
5
3
x
3
2(x 3)
x 3
2x 9
x 3 2x 1
= 0 26/
x 1 x 2
x
x 2
= 0 25/
= 0
x
5x 6
x 2
3 x
x 1
3 x
x
2x 3