Without finding cubes, factorise : (x − y) 3 + (y − z) 3 + (z − x) 3
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Step-by-step explanation:
3(x-y) =3x-3y
3(y-z) =3y-3z
3(z-x) =3z-3x
=3x-3y+3y-3z+3z-3x
=0
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