Using factor theorem, factorize the following polynomial :

$3x^3-x^2-3x+1$

 Using factor theorem, factorize each of the following polynomials :

$x^3-23x^2+142x-120$

Using factor theorem, factorize the following polynomial :

$y^3-7y+6$

Using factor theorem, factorize the following polynomial :

$x^3-10x^2-53x-42$

Using factor theorem, factorize the following polynomial :

$y^3-2y^2-29y-42$

Using factor theorem, factorize the following polynomial :

$2y^3-5y^2-19y+42$

Using factor theorem, factorize the following polynomials :

$x^3+13x^2+32x+20$

Using factor theorem, factorize each of the following polynomials :

$x^3-3x^2-9x-5$

Using factor theorem, factorize following polynomial :

$2y^3+y^2-2y-1$