Question

a2-b2)(a2+b2)-(a2-b2)2​

Answer 1

Step-by-step explanation:

$( {a}^{2} - {b}^{2} )( {a}^{2} + {b}^{2} ) - ( {a}^{2} - {b}^{2} ) {}^{2} \\ = ( {a}^{2} - {b}^{2} )( {a}^{2} + {b}^{2} - {a}^{2} + {b}^{2} ) \\ = ( {a}^{2} - {b}^{2} )( {b}^{2} )$