Question

Algebraic expression and identities

Answer 1

( xy + yz)^2 - (xy - yz)^2

= ( xy + yz - xy + yz) ( xy + yz + xy - yz)

= ( 2 yz) ( 2 xy)

= 4xy^2 z

Identity used in second line is :-

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

Answer 2

Hello dear your answer



Thanks!!