Answer:
Please, see the attached graphs
Step-by-step explanation:
9. f(x)=x(x+2)(x+1)
It has a local maximum of 0.385 at x = - 1.577
It has a local minimum of - 0.385 at x = - 0.423
It has an inflection point at x = - 1
10. f(x)=(x-1)^3 (x+1)
It has a global minimum of - 1.688 at x = - 0.5
It has two inflection points at x=0 and at x=1
