Question

factorise-
1 + x + xy + x²y​

Answer 1

Answer:

later

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)