Factorise the following polynomials: a^2b + ab^2 – abc – b^2c + axy + bxy

(i) a²b + ab² – abc – b²c + axy + bxy
(ii) ax² – bx² + ay² – by² + az² – bz²

Solution:

(i) x – 1 – (x – 1)² + ax – a
(ii) ax + a²x + aby + by – (ax + by)²

Solution:

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