Question

factorise the following (2 to 13) expression:

Hey can anyone solve this problem....

my answer is coming wrong​

Answer 1

Step-by-step explanation:

${x}^{4} - {y}^{4} + {x}^{2} - {y}^{2} \\ = ( {x}^{2} + {y}^{2})( {x}^{2} - {y}^{2}) + (x + y)(x - y) \\ = ( {x}^{2} + {y}^{2} )(x + y)(x - y) + (x + y)(x - y) \\ = ( {x}^{2} - {y}^{2})( {x}^{2} + {y}^{2} + 1)$

please mark my answer as brainlest ❤️