For the polynomial For the polynomial, -2 is a zero. $h(x)= x^3+8x^2+14x+4$. Express $h(x)$ as a product of linear factors. 
Can someone please explain and help me solve? 

Hint: $a$ is a root of the polynomial $f(x)$ if and only if the polynomial $x-a$ divides $f(x)$. So if you divide $h(x)$ by $x+2$ you get a polynomial of degree $2$. Do you know how to find the roots of a polynomial of degree $2$?
