Question

Explain by using suitable identity-
(x2+y2)(x2-y2)​

Answer 1

its answer is

${x}^{4} + {y}^{4}$

by using identity

( a + b ) ( a - b ) = ( a^2 - b^2 )

Answer 2

Answer:

x^4 - y^4

Step-by-step explanation:

(x²+y²)(x²-y²)

Using the identity (x+y)(x-y)=x²-y²

Here x=x², y=y²

∴(x²+y²)(x²-y²) = (x²)²-(y²)²

                       = x^4 - y^4

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