Question

Simplify : (x+y)(x
-y) (x²+y²)​

Answer 1

Answer:

(x+y)2

Step-by-step explanation:

(x+y)(x-y)(x2+y2) = (x+y)2

Answer 2

Step-by-step explanation:

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

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