Plzz answer it step by step plzzzz
x3-23x2+142x-120
x3-23x2+22x+120x-120
x3-x2-22x2+22x+120x-120
x2(x-1)-22x(x-1)+120(x-1)
(x2-22x+120)(x-1)
(x2-10x-12x+120)(x-1)
[x(x-10)-12(x-10)](x-1)
(x-12)(x-10)(x-1)
x3-23x2+22x+120x-120
x3-x2-22x2+22x+120x-120
x2(x-1)-22x(x-1)+120(x-1)
(x2-22x+120)(x-1)
(x2-10x-12x+120)(x-1)
[x(x-10)-12(x-10)](x-1)
(x-12)(x-10)(x-1)