Question

(1-x²) (1-y²) +4xy factorise​

Answer 1

Answer:

ANSWER

(1−x  

2

)(1−y  

2

)+4xy

1−x  

2

−y  

2

+x  

2

y  

2

+4xy

(1+2xy+x  

2

y  

2

)−(y  

2

+x  

2

−2xy)

(1+xy)  

2

−(x−y)  

2

 

(1+xy+x−y)(1+xy−x+y)

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