Question

(x+y) (y+1)=xy+x+y+...​

Answer 1

Answer:

Expression is written as

x+y

1

⋅(

x

1

+

y

1

)⋅(

y

x

+

x

y

)

−1

=

x+y

1

⋅

xy

x+y

⋅

x

2

+y

2

yx

=(x

2

+y

2

)

−1

.