Question

the value of ( √x +√y ) (√x - √y) ( x + y ) ( x^2+y^2 ) ​

Answer 1

Answer:

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

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