Question

factories (x+y) ² -[x-y] ²​

Answer 1

Answer:

(X+Y)square (X-Y)square=(X square- Y square)

Answer 2

(x+y)²−(x−y)²

Distribute:

=x²+2xy+y²+(−x²)+2xy+(−y²)

Combine Like Terms:

=x²+2xy+y²+(−x²)+2xy+(−y²)

=(x²+(−x²))+(2xy+2xy)+(y²+(−y²))

=4xy