Question

Simplify : (x+y) (x-y) (x²+y²)​

Answer 1

Answer:

${x}^{2} - {y}^{2}$

Step-by-step explanation:

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