Question

Factorise:
16-(x^2)-2xy-(y^2)​

Answer 1

Answer:

16- x^2 - 2xy +-y^2

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

16= 4^2

(x - y)^2 - 4^2 = a^2 - b^2

= (x-y+4)(x-y-4)

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