Question

help me to solve It!!!

Answer 1

${a}^{2} {x}^{2} + (a {x}^{2} + 1)x + a$
$= {a}^{2} {x}^{2} + a {x}^{3} + x + a$
$= a {x}^{2} (a + x) + 1(a + x)$
$= (a + x)(a {x}^{2} + 1)$