Question

How do I do part c and d from number 1?

Answer 1

The factorisation of f(x) is

`f(x)=(x+1)(x-2)^2(x^2+x+2)`

The rational roots are x = -1 and x = 2.

The complex roots are

`x=-(1)/(2)+\frac{\sqrt[]{7}}{2}i\text{ and }x=-(1)/(2)-\frac{\sqrt[]{7}}{2}i`

The graph of the function is given below: