m2 - n2 - 2n - 1 Factor
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Answer:
(m-n)(m+n)-(2n+1)
Step-by-step explanation:
m²-n²-2n-1
=(m-n)(m+n)-(2n+1)
=m²+(mn-mn)-n²-2n-1
=m²-n²-2n-1
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