1.

Factorise x^2–2xy+y^2–2(x–y)+1​

Answer»

ANSWER:USING the IDENTITY:

x2+y2−2xy=(x−y)2

x2+y2−2xy−1=(x−y)2−1=(x−y−1)∗(x−y+1)

We THEREFORE have 2 factors: (x−y−1) and (x−y+1)

Step-by-step explanation:



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