Question

(b) Simplify: (x + y + z)? – (x - y + z)?​

Answer 1

:⟹ ( X + Y + Z )² – ( X – Y + Z )²

WE CAN COMPARE IT WITH :⟹ ( a² – b² )

so ,

:⟹ a = ( X + Y + Z )

b = ( X – Y + Z )

:⟹ a² – b²

= [ ( a + b ) ] [ ( a – b ) ]

= [ ( X + Y + Z ) + ( X – Y + Z ) ] [ ( X + Y + Z ) – ( X – Y + Z ) ]

= [ 2X + 2Z ] [ 2Y ]

= 4XY + 4ZY

SO ANSWER : 4XY + 4ZY

I HOPE THIS WILL BE HELP YOU