1.

= x ^ { 3 } - x ^ { 2 } - 22 x ^ { 2 } + 22 x + 120 x - 120

Answer»

x^3-x^2-22x^2+22x+120x-120=x^2(x-1)-22x(x-1)+120(x-1)=(x-1)(x^2-22x+120)=(x-1)(x^2-10x-12x+120)=(x-1)(x-10)(x-12)



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