Question

14. Factorisation of
1+X+Y+xy is *
O (1+x)(1-y)
O (1+x)(1+y)
O (1-x)(1+y)
O
(1-x)(1-y)​

Answer 1

Answer:

Here you go-

we have

1+x+y+xy as the equation

1(1+x)+y(1+x) [taking y common and grouping 1+x]

it can now be written as

(1+y)(1+x)

OR

(1+x)(1+y)

hence option B is correct

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