Question

16 – x2 - 2xy - y2factorise this question ​

Answer 1

Answer: (4+x+y) (4-x-y)

Step-by-step explanation:

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

= 16-(x^2+2xy+y^2)

= 4^2 - (x+y)^2

=(4+x+y) (4-x-y)  

Answer 2

Step-by-step explanation:

Ans : (4+x+y)(4-x-y)

And the method of this is given in the picture.

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