Expand the following, using suitable identities. (x^2+y^2 ) (x^2-… - Vidyadip

Question

Expand the following, using suitable identities.
$ \left(x^2+y^2\right)\left(x^2-y^2\right) $

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Answer

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

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