Conv$\_2)$ Given convolution kernel $K$ below, find two $1-$dimensional kernels K$1,$ K$2$ such that $K=K1**K2$ where $**$ is convolution operator.

$K=\{\begin{array}{ccc}\text{:}[-1,& 2,& -1]\\ -2,& 4,& -2\\ -1,& 2,& -1\end{array}$