Use the Factor Theorem to Show That $( 2 - x )$

Essay

Use the Factor Theorem to show that $( 2 - x )$ is a factor of the polynomial $P ( x ) = x ^ { 3 } - 13 x ^ { 4 } + 57 x ^ { 2 } - 83 x ^ { 2 } - 34 x + 120$ .