Question

{ (x - z )² + x² } { ( x - z ) ² - x ² }

{ x² + z² - 2xz + x² } { x² + z² - 2xz - x² }

{ 2x² + z² - 2xz } { z² - 2xz }  explain this how it has been done

Answer 1

this is the answer of the questions