Question

9. Find the product of (x - xy + y) and (x + y).


please tell very important
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Answer 1

Step-by-step explanation:

(x+y) (x-xy+y)

= x(x-xy+y) + y(x-xy+y)

=

$= x ^{2} - x^{2} y + yx + xy - xy^{2} + y^{2}$

$= x ^{2} - x^{2} y + 2xy - xy^{2} + y^{2}$

{ because like terms can be added to and subtracted from each other.}