Question

Factorize:-
a^2b^2 +b^2+a^2+1

Answer 1

Here is the answer

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