g) x^3 – 2x^2y + xy^2 – 4x.
g) x3 – 2x2y + xy2 – 4x.
g) x3 – 2x2y + xy2 – 4x = x(x2 – 2xy + y2 – 4)
= x[(x – y)2 – 22] = x(x – y + 2)(x – y – 2).