Question

please tell me the correct answer
and tell fast my friends....​

Answer 1

Answer:

$( {x}^{2} + {y}^{2} )( {x}^{2} + {y}^{2} ).$

Step-by-step explanation:

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

Answer 2

Answer:

(x ^ 2 - y ^ 2) + 4x ^ 2 * y ^ 2 = x ^ 4 + y ^ 4 - 2x ^ 2 * y ^ 2

=x^ 4 +y^ 4 +2x^ 2 y^ 2

=(x^ 2 +y^ 2 )^ 2

=(x^ 2 +y^ 2 )(x^ 2 +y^ 2 ) .

Step-by-step explanation:

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