Answer:
x=5 and x=-2
Step-by-step explanation:
Knowing that a root is a "x" value where f(x)=0, and consequently the graphic goes through the absise (x axis). We have that when:
f(5)=(5-5)3(5+2)2 =0
and
f(-2)= (-2+5)3(-2+2)2 =0
Then, x=5 and x= -2 are function's roots and the graph touchs the x axis in two "x" values.
