X= 2 + 0.9 (0.2X + 0.2Y + 0.6Z)
Y= 4 + 0.9 (0.1Y + 0.2X + 0.7Z)
Z= -2 + 0.9 (0.6Z + 0.3Y + 0.1X)
trace f(x)=(x-1)(x-1)+2
43.17=x^2+12x
2x+7=1
trace f(x)=1/(x-2)
trace the function f(x)=(1/(x-1))+2
$$\begin{bmatrix} 3 & 2 \\\\ 9 & 8 \\\\ 2 & 4 \end{bmatrix}$$ multiplication of matrices
ie
12:3-3.(-4)