Question

a²b²+ b² + a² + 1
Factorise​

Answer 1

Answer: ($b^{2}$+1) ($a^{2}$+1)

explanation

$a^{2} b^{2}$ + $a^{2}$+ $b^{2}$ + $a^{2}$  + 1

$b^{2}$( $a^{2}$+1 ) + 1($a^{2}$1)

($b^{2}$+1)($a^{2}$+1)

hope it helps ^_^