9-6x²+x^4-9-6x³-x^6 / -6+x²-x³=
=-6x²-6x³-x^6+x^4 /-6+x²-x³=
=-6x²(1+x)-x^4(x²-1) /-6+x²-x³=
=-6x²(x+1)-x^4(x-1)(x+1) /-6+x²-x³=
=(x+1)(-6x²-x^4(x-1))/-6+x²-x³=
=(x+1)(-6x²-x^5+x^4) /-6+x²-x³=
=(x+1) x²(-6-x³+x²) /-6+x²-x³=
=(x+1)x²
(1.2+1)X 1.2²=2.2X1.44=3.168