$$\left. \begin{array} { l } { P ( x ) = 2 x ^ { 2 } - 3 x + 1 ( 3 x + 1 ) } \\ { P ( - 5 ) = 2 ( - 5 ) ^ { 2 } - 3 ( 5 ) + 1 } \\ { ( - 5 ) = - 2 ( 5 ) - 3 ( - 7 ) + 1 } \\ { ( - 7 ) - \frac { 3 } { 3 } + \right.$$
