Question

factorise -
1+x square y square +x square+ y square
​

Answer 1

Answer:

Given

$= 1 + {x}^{2} . {y}^{2} + {x}^{2} + {y}^{2}$

$= 1 + {y}^{2} + {x}^{2} . {y}^{2} + {x}^{2}$

$= (1 + {y}^{2} )+ {x}^{2} ( {y}^{2} + 1)$

Common the same term

$= (1 + {y}^{2} )(1 + {x}^{2} )$

Here is ur answer..