Factor polynomial $$ x^{2}-y^{2}+x-y $$
Answer
$$ x^{2}-y^{2}+x-y = (x-y)(x+y+1) $$
Explanation
$ x^2-y^2+x-y $ can be written as
$$ x^2-y^2+x-y = \left( x-y \right) \left( x+y+1 \right)$$The explanation for this step cannot be generated.
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