$$a^{3}+a^{2}+ax+x+a+1$$
$\left(a+1\right)\left(x+a^{2}+1\right)$
$$a\left(x+a^{2}+1\right)+x+a^{2}+1$$
$$\left(x+a^{2}+1\right)\left(a+1\right)$$
Show Solution
Hide Solution
