Question

find the product of ( x+y+z)(x+y-z)​

Answer 1

Answer:

Their product is x(x+y−z)+y(x+y−z)+z(x+y−z)

=x2+xy−xz+xy+y2−yz+zx+yz−z2

=x2+y2−z2+2xy

Step-by-step explanation:

hope this will help you

Answer 2

Answer:

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

x²+xy-xz+yx+y²-yz+xz+zy-z²

x²+y²-z²+2xy

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