Question

Factorise X square + Y squa
re + 2xy - Z Square

Answer 1

X ^ 2 + Y ^ 2 + 2xy - Z ^ 2

Using identity -- a ^ 2 + b ^2 + 2ab =(a + b ) ^2

= ( X + Y ) ^2 - Z ^2

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

= ( X + Y + Z ) ( X + Y - Z )

Answer 2

Hey user !!

⤵⤵Here is ur answer --

✅✅x^2 + y^2 + 2xy - z^2

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

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

Using the formula of (a^2 - b^2)....

= (x + y + z) (x + y - z)

HOPE IT HELPS....☺✌