Question

FACTORIZAR:
(x+y) (xy+1)+y(x+y)-(x+y)

Answer 1

el factor principal es : (x+y)
entonces factoriza como:
(x+y)[(xy+1)+y-1]
(x+y)[xy+1+y-1]
(x+y)[xy+y]
(x+y)[y(x+1)]
y(x+y)(x+1)