The polynomial $P$ is defined as $P ( x ) = x^3+ 4x^2 + 5x + 3$

Express $P ( x )$ in the form $P ( x ) = ( x + 2 ) ( x^2+ ax + b ) + c$, where $a$, $b$ and $c$ are whole numbers.

any one tell me the idea of solution ♥ ♥ ♥