x²+2xy+y2-z² factorise the following
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Answer:
Step-by-step explanation
(x^2-2xy+y^2)-z^2=(x-y)^2-(z)^2
=[(x-y)+z][(x-y)-z]
(x-y+z)(x-y-z)
(x^2-2xy+y^2)-z^2=(x-y+z)(x-y-z)