Question

Question #831b1

Answer 1

`x=-1,-2`

Explanation:

This is a graph of the function
graph{|x^2+3x+2| [-5, 2, -1, 5]}

In general the function `|f(x)|` is non-differentiable when `f(x)=0`:

`x^2+3x+2 = 0 => (x+2)(x+1) = 0`
`:. x=-1,-2`