$$\begin{bmatrix} 1 & 1 & 1 \\\\ 1 & 1 & 1 \\\\ 1 & k & 1 \end{bmatrix}$$
(3x+2)(x+9)
$$\begin{bmatrix} 1 & 1 & 1 \\\\ 1 & 1 & 1 \\\\ 1 & k & a \end{bmatrix}$$
-5= -3e^(-t+4)*(t+1)
2(3a+11)=4a+38
16-3y=5y
4(9+5x^2)=356
2t^2-72=0
54*n^2 - 26*n + 4
factorize
