Question

find the product of (z2+xy) (z2-xy)​

Answer 1

Answer:

( z2) - (xy )

Step-by-step explanation:

( a)²-( b)² =(a+b) (a-b)

Answer 2

Answer:

The given question is of the form

(a+b) (a-b) = a2-b2 identity

a is z2, b is xy

So...

a2-b2

= (z2) 2 - (xy) 2

z4 - (x2) (y2)

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